Optical illusion challenges have become one of the internet’s most favorite pastimes. They are quick, addictive, and often frustrating in just the right way. The idea is simple. Players are given an ...

The basic premise of an optical illusion is to deceive our brain and eyes and manipulate our perception. If you look at the etymology of the term "illusion", you can see it is derived from the Latin ...

If you enjoy brain teasers, get ready for a doozy. Solving this hidden-picture puzzle by Hungarian artist Gergely Dudás, who is widely known by the name Dudolf, has become a favorite pastime for ...