In today’s optical illusion challenge, a hidden number 4 is cleverly camouflaged among letter A’s. Can you spot it? This brain teaser tests your observation skills and cognitive sharpness. Experts ...

Optical illusions are powerful mind games that reveal how our brains process visual information. Your brain isn't just a ...

Optical illusions play tricks on your brain and can make you see things that aren't really there, from static images swirling around the page to images that stay with you even after you look away.