Brain Teasers
Hardest Optical-Illusion Teasers
An optical illusion is a visually perceived image that is deceptive or misleading. You can browse the optical illusions via this list or via a graphical list.
These brain teasers have been voted as the most difficult. Only teasers with at least 20 votes are shown. Good luck solving them!
Optical Illusions
Title | Popularity | Difficulty | Submitted | ||
---|---|---|---|---|---|
1 | Gray Squares | 10/16/05 | by Jake | ||
2 | Impossible Rectangle | 11/11/05 | by Jake | ||
3 | Man or Woman | 08/02/06 | by Jake | ||
4 | Elephant Legs | 08/02/06 | by Jake | ||
5 | Glasses and Dumbbells | 05/04/06 | by Jake | ||
6 | Circle Square? | 05/03/06 | by Jake | ||
7 | Right Angles | 05/03/06 | by Jake | ||
8 | Unstable Fins | 02/09/06 | by Jake | ||
9 | Frazer's Spiral | 02/09/06 | by Jake | ||
10 | Impossible Stairs | 02/01/06 | by Jake | ||
11 | Moving Spokes | 02/01/06 | by Jake | ||
12 | Chair or Block | 11/16/05 | by Jake | ||
13 | Native American or Inuit | 11/13/05 | by Jake | ||
14 | Grey Dots | 11/13/05 | by Jake | ||
15 | Angles or E | 11/13/05 | by Jake |
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