Optical illusions are designed to exploit your brain's natural shortcuts and assumptions when processing visual information. These are fun and engaging in nature. These can test your brain's ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and were seen in caves. Nowadays they are found all over the place – on screens, in books and even in ...

Optical illusions never seem to get old; one after another, the simplest pictures transform into a hard visual task for internet users. One of the puzzles that went viral is the one testing people's ...