What's your IQ? Only 1% people can spot the hidden face within 7 seconds

A quick visual challenge claims only 1% can spot a hidden face in 7 seconds. Optical illusions trick the brain by blending ...

Only 1 in 3 people spot all the faces in this viral optical illusion: What do you see first?

This ambiguous optical illusion challenges the brain by hiding multiple faces within a single image. The article explains how ...