http://www.mathpodcast.com/videos/Brain-Teasers/Brain-Teasers.html 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 &quot;Find the Twin&quot; problems. iWeb 3.0.1 http://www.mathpodcast.com/videos/Brain-Teasers/Brain-Teasers_files/VMT-BrainTeasers.jpg http://www.mathpodcast.com/videos/Brain-Teasers/Brain-Teasers.html 60 no The Video Math Tutor The Video Math Tutor videomathtutor@mac.com 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 &quot;Find the Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. 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May include pencil drawing games, optical illusions, hidden images and &quot;Find the Twin&quot; problems. no 00:01:57 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" proble Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. 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May include pencil drawing games, optical illusions, hidden images and &quot;Find the Twin&quot; problems. no 00:00:38 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" proble Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. 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