In this mind-bending puzzle, there are three numbers that are visible - 21, 22, and 23. But there is a third number in this ...

Test your vision with this mind-boggling optical illusion! Among a wave of 25s, a single 'S' is cleverly hidden—can you spot it in under 10 seconds? This tricky brain teaser is designed to challenge ...

A certain class of motion illusion, known as motion aftereffects, has a well-understood mechanism. When your eyes are exposed to continuous motion in one direction for a long time, motion ...

Pain in your eyes is unlikely to be a symptom of solar retinopathy, since the retina doesn’t have any pain receptors. The ...

Test your eyesight with a challenging optical illusion that requires you to spot the real owl among soft toys in just 7 seconds. Focus on subtle differences in texture and eye color to ...

They say seeing is believing but can you really trust your eyes? From eye-boggling images to logic-defying illusions that play with the subconscious mind, we’ve gathered five famous optical ...