Optical illusions are powerful IQ tests that reveal how sharp your observation skills are! These cleverly designed images ...

Only those with an IQ as high as Einstein will be able to solve this fiendishly challenging brainteaser. In fact, you might ...

More research shows that your ability to balance on one leg can reveal how well you’re aging. Discover the fascinating science for why, and what you can do to improve.

This picture puzzle might seem simple, but a baby chick is hiding somewhere in this busy image. You have only five seconds to ...