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  <channel>
    <title>Viddler &gt; All tags- math for videomathtutor</title>
    <link>http://www.viddler.com/explore/videomathtutor/tags/all/math/</link>
    <description>videomathtutor's videos tagged with math</description>
    <pubDate>Wed, 06 Jan 2010 08:59:36 GMT</pubDate>
    <image>
      <title>viddler</title>
      <url>http://www.viddler.com/css/images/viddler.gif</url>
      <link>http://www.viddler.com/</link>
      <description>Viddler.com - Upload, Enhance, Share</description>
    </image>
    <item>
      <title>Video Brain Teaser #54</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/106/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/106/&quot; title=&quot;Video Brain Teaser #54&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_20468c07_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #54&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/20468c07/" length="50" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:03:01 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/106/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/106/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/106/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_20468c07_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #54</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #53</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/105/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/105/&quot; title=&quot;Video Brain Teaser #53&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_f7a8001a_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #53&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/f7a8001a/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:01:05 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/105/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/105/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/105/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_f7a8001a_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #53</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #52</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/104/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/104/&quot; title=&quot;Video Brain Teaser #52&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_1c21333c_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #52&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/1c21333c/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:01:04 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/104/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/104/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/104/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_1c21333c_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #52</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #51</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/103/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/103/&quot; title=&quot;Video Brain Teaser #51&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_e91fe451_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #51&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/e91fe451/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:01:00 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/103/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/103/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/103/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_e91fe451_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #51</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #50</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/102/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/102/&quot; title=&quot;Video Brain Teaser #50&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_91ef8273_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #50&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/91ef8273/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:01:07 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/102/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/102/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/102/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_91ef8273_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #50</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #49</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/101/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/101/&quot; title=&quot;Video Brain Teaser #49&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_4ab110cc_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #49&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/4ab110cc/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:01:02 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/101/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/101/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/101/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_4ab110cc_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #49</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #48</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/100/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/100/&quot; title=&quot;Video Brain Teaser #48&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_1fef99ab_v2.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #48&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/1fef99ab/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:00:05 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/100/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/100/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/100/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_1fef99ab_v2.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #48</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #47</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/99/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/99/&quot; title=&quot;Video Brain Teaser #47&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_5389bae7_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #47&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/5389bae7/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:00:03 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/99/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/99/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/99/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_5389bae7_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #47</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #46</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/98/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/98/&quot; title=&quot;Video Brain Teaser #46&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_3b4bbdca_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #46&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/3b4bbdca/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:00:03 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/98/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/98/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/98/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_3b4bbdca_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #46</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #45</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/97/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/97/&quot; title=&quot;Video Brain Teaser #45&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_89751061_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #45&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/89751061/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:01:08 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/97/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/97/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/97/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_89751061_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #45</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #44</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/96/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/96/&quot; title=&quot;Video Brain Teaser #44&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_3e9579e7_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #44&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/3e9579e7/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 00:59:04 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/96/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/96/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/96/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_3e9579e7_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #44</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #43</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/95/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/95/&quot; title=&quot;Video Brain Teaser #43&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_cc692952_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #43&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/cc692952/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 00:59:03 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/95/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/95/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/95/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_cc692952_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #43</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #42</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/94/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/94/&quot; title=&quot;Video Brain Teaser #42&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_6cd6886e_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #42&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/6cd6886e/" length="50" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:02:00 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/94/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/94/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/94/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_6cd6886e_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #42</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #41</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/93/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/93/&quot; title=&quot;Video Brain Teaser #41&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_f0754690_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #41&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/f0754690/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:02:02 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/93/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/93/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/93/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_f0754690_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #41</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #40</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/92/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/92/&quot; title=&quot;Video Brain Teaser #40&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_fb80d49e_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #40&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/fb80d49e/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 00:58:04 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/92/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/92/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/92/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_fb80d49e_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #40</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #39</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/91/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/91/&quot; title=&quot;Video Brain Teaser #39&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_c1d8a468_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #39&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/c1d8a468/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 00:59:00 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/91/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/91/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/91/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_c1d8a468_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #39</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #38</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/90/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/90/&quot; title=&quot;Video Brain Teaser #38&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_862546ac_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #38&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/862546ac/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 00:57:04 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/90/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/90/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/90/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_862546ac_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #38</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #37</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/89/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/89/&quot; title=&quot;Video Brain Teaser #37&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_65d6d50a_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #37&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/65d6d50a/" length="49" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:03:00 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/89/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/89/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/89/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_65d6d50a_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #37</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #36</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/88/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/88/&quot; title=&quot;Video Brain Teaser #36&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_f70ebc4a_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #36&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
&#xD;
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
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&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/f70ebc4a/" length="102" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 00:58:01 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/88/</guid>
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        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/88/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_f70ebc4a_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #36</media:title>
      </media:content>
    </item>
    <item>
      <title>Video Brain Teaser #35</title>
      <link>http://www.viddler.com/explore/videomathtutor/videos/87/</link>
      <description>&lt;p&gt;&lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/videos/87/&quot; title=&quot;Video Brain Teaser #35&quot; &gt;&lt;img src=&quot;http://cdn-thumbs.viddler.com/thumbnail_1_9d235d30_v1.jpg&quot; width=&quot;114&quot; height=&quot;86&quot; alt=&quot;Video Brain Teaser #35&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;&#xD;
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Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.&lt;p&gt; By &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/&quot; &gt;videomathtutor&lt;/a&gt;&lt;/p&gt;&#xD;
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&lt;p&gt; Tags : &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/Game&quot;&gt;Game&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/brain&quot;&gt;brain&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/challenge&quot;&gt;challenge&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/find&quot;&gt;find&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/fun&quot;&gt;fun&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/game.&quot;&gt;game.&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/hidden&quot;&gt;hidden&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/illusion&quot;&gt;illusion&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/image&quot;&gt;image&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/math&quot;&gt;math&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/optical&quot;&gt;optical&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/puzzle&quot;&gt;puzzle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/riddle&quot;&gt;riddle&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/teaser&quot;&gt;teaser&lt;/a&gt;, &lt;a href=&quot;http://www.viddler.com/explore/videomathtutor/tags/twin&quot;&gt;twin&lt;/a&gt;&lt;/p&gt;</description>
      <enclosure url="http://www.viddler.com/player/9d235d30/" length="80" type="application/x-shockwave-flash" />
      <pubDate>Fri, 04 Dec 2009 01:03:02 GMT</pubDate>
      <guid>http://www.viddler.com/explore/videomathtutor/videos/87/</guid>
      <media:content url="http://www.viddler.com/explore/videomathtutor/videos/87/">
        <media:player url="http://www.viddler.com/explore/videomathtutor/videos/87/" />
        <media:category label="Tags">Game brain challenge find fun game. hidden illusion image math optical puzzle riddle teaser twin</media:category>
        <media:credit role="author" scheme="urn:ebu">videomathtutor</media:credit>
        <media:thumbnail url="http://cdn-thumbs.viddler.com/thumbnail_1_9d235d30_v1.jpg" width="114" height="84" />
        <media:title>Video Brain Teaser #35</media:title>
      </media:content>
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