A brain teaser challenge is a type of IQ test that mostly involves solving a puzzle, cracking a code, finding a hidden object ...

Are you ready to put your pattern-spotting, logic, and IQ to the test? In this challenge, we’ll twist numbers, letters, and shapes, daring you to uncover hidden sequences, decode mystery letter values ...

What is an Optical Illusion? An optical illusion is a visual phenomenon where the brain misinterprets what the eyes see. Instead of perceiving an image exactly as it is, the brain fills in gaps, ...

An optical illusion brain teaser tricks the brain into perceiving something different from reality by exploiting how our visual system processes information. These illusions manipulate light, colour, ...