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.
Questions answered by this video:
Which circle is larger in this optical illusion of two circles?
Currently 2.0/5 Stars.
This optical illusion is pretty cool, but it is not too difficult to guess the correct answer.