Hidden number and letter optical illusions are some of the most satisfying puzzles because they look unbelievably simple ...

This optical illusion shows a noisy, grainy pattern that looks like pure visual chaos at first glance. Hidden in this picture ...

Our brains create false perceptions through these illusions, which make us see things that do not exist while they distort ...

Optical illusions are becoming more and more popular on the internet. Thousands of people have made optical illusions their favourite pastime because of the game's simplicity and directness. The ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

Think you have the eyes of a true problem solver? This visual puzzle asks you to find the hidden odd number among similar digits. It looks simple at first glance, but only careful thinkers can crack ...