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 is larger in this optical illusion, the top inner circle or the bottom outer circle?
Currently 2.0/5 Stars.
The circles in this image play with your senses, and it is tough to tell which circles are larger than which others.