Optical illusion puzzles have been there for centuries and these are fun challenges that are designed to play tricks on our eyes and brains. Optical illusions work on a simple principle where it ...

Here is an optical illusion challenge that will test your visual processing speed, attention to detail, and focus. There is a ...

A Cognitive Skill is the ability that enables us to think logically, and to learn, remember, and solve problems. In today’s puzzle series, there is 3D Stereogram Illusion is given with many random ...