An optical illusion shared on X challenges viewers to find the number '62' hidden among a sea of '26's within 7 seconds. This brain teaser tests observation skills and mental sharpness, suggesting a ...

Optical illusions are fascinating images that trick your brain and challenge the way you perceive the world. These mind-bending pictures often feature objects, drawings, or even people that shift ...

The study authors suspect that rather than randomly moving shapes until they fit a pattern, successful students were forming ideas, testing them and then pausing to reflect before trying a new one.

Challenge your IQ and observation skills with this fun brain teaser! Can you match the correct key shape out of ten options in just 8 seconds? Put your quick thinking to the test.

Optical illusion IQ test: Only the quickest minds can see the hidden 5 among the 2s under 5 seconds Think you have sharp eyes? Find the hidden 5 among the grid of 2s within 5 seconds.

As the US president again boasts about his IQ, how does his intelligence compare with other presidents?

IQ tests are based on two types of problems: progressive matrices, which test the ability to see patterns in pictures, and number sequences, which test the ability to see patterns in numbers.

Test your visual IQ with this tricky optical illusion! Can you spot the hidden light bulb in 5 seconds? A brain teaser for sharp minds and high IQ solvers!