A mind-bending brainteaser challenges viewers to spot a critical error in judgment. The puzzle depicts four men perched on ...

Dive into the intriguing world of optical illusions! Discover what you see first in a famous painter's portrait and what it ...

Test your observation skills with this tricky optical illusion! Only 1% can spot the hidden human face in the dog image ...

Today’s optical illusion challenge is all about testing your observation skills. At first glance, the image looks simple.

ONLY 15% of of millennials can spot the correct hidden image in this blurred optical illusion – but can you do it in less ...

This fun optical illusion tests your ability to focus. The cluster of related words conceals a word. Task: Within 7 seconds, ...

However, hidden within this vibrant image is a small candle, cleverly camouflaged among the details. The illustration bears the title “Optical Illusion IQ Test,” with the challenge displayed beneath: ...

An optical illusion has been circulating online that claims to be able to tell you something about your personality based on ...

This fun optical illusion tests your ability to focus! The cluster of related numbers conceals a number. Within 5 seconds, ...

Redditors responded with mixed reactions — some successfully spotting the cat’s hiding place, while others admitted defeat ...

A tricky optical illusion challenges viewers to find five differences between two seemingly identical images of a man ...

When the new book Champions of Illusion: The Science Behind Mind-Boggling Images and Mystifying Brain Puzzles arrived at the Mental Floss offices, we couldn't flip through it—and flip our brains ...