Optical illusions push your brain to think creatively, and this one is a tough test. Spotting two patients hidden in an image ...

From the mad snap of the sitting women that always has us baffled, a 'second horse' only people with a high IQ can spot, and ...

Viewers were mesmerized by the striking scene in the viral clip, with one saying, "That's a view into an alternate reality." ...

Test your IQ with this optical illusion puzzle! Can you spot the hidden carrots among vegetables in just 5 seconds? Only 1% ...

Not all minds are wired the same. Some people can instantly recognize hidden details, while others get tricked by illusions.

Test your detective skills with a challenging optical illusion! Spot the werewolf hidden among three doctors in just 11 ...

Challenge your IQ with this optical illusion puzzle! Spot the hidden toy car in this bathroom illusion in just 5 seconds.

THIS is the brainteaser that asks you to combine more than one skill – pictures and words – in a punishing game of intellect.

Solving optical illusions requires patience, observation, and strategic techniques. To spot hidden numbers, viewers should ...

Using a computer model of the retina, researchers have been able to trace the cause of the expanding hole illusion ...