The illusion makes clever use of colour theory, demonstrating how our brains perceive colours differently against certain ...

Have you ever looked at two circles of exactly the same size and sworn one was larger? If so, your eyes have been tricked by ...

A new study reveals guppies are easily tricked by optical illusions, while ring doves see clearly, highlighting differences ...

Whether it is salt flats in Bolivia or rock formations in Arizona, nature never ceases to amaze.

An optical illusion shared on Reddit puzzled users as they tried to spot a hidden cat beside the one sitting by the window.

Several experienced players were left stumped by this viral optical illusion challenge. Do you think you can solve it?

The New Optical illusion image has 14 columns and nine rows, and the challenge is to find out the lone number '7103.' ...

The photo shows dozens of translucent round beads glowing under a white ring light, each one catching rainbow reflections.

Although the challenge is suitable for beginner-level aptitude, many players who tried to solve the brain teaser failed to ...