eyetricks.com - Amazing Optical Illusions, 3D Stereograms, and other Mind Teasing Oddities!

http://www.eyetricks.com/

Optical Illusions Optical Illusion Index Scary Optical Illusion Jesus Optical Illusion Illusions You Can Do MC Escher Octavio Ocampo Salvador Dali Optical Illusions The Art of the
eyetricks.com provides a wide selection of online optical illusions and other mind teasing oddities.

Perplexing Puzzles and Tantalizing Teasers by Martin Gardner (Math Lair)

http://mathlair.allfunandgames.ca/perplexingpuzzles.php

reflections, optical illusions, puzzles that might be referred to as lateral thinking puzzles nowadays, and more. No advanced mathematical or other knowledge is required to solve

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