The optical illusion puzzle with matchsticks left viewers perplexed, as they struggled to count the correct number due to the ...

Our brain and eyes can play tricks on us—not least when it comes to the expanding hole illusion. A new computational model ...

For those that love optical illusions – and a good explanation for the mind-bending properties of them – finding one you haven't seen before is a real treat. And that's just happened with this (I ...

Optical illusions are interesting puzzles that test your perception and intelligence. These visual tricks challenge how your ...