An optical illusion is a type of puzzle where the viewer perceives the image differently, but the answer is hidden in the ...

An optical illusion is a visual phenomenon where our perception of thinking about an image differs from objective reality.

A stereogram optical illusion is a fascinating visual puzzle that hides a 3D image within a 2D pattern. At first glance, it appears to be a random collection of repeating designs or colourful dots.

NJ.com offers readers dozens of puzzles and games that can be played on a computer, iPad or mobile device each day. Certain offerings, like the crosswords and word searches, refresh daily with new ...