A Brain Teaser is type of puzzles which is designed to stimulates your brain and these types of puzzles often requires ...

Optical illusions are fun visual puzzles that play tricks on your eyes and brain. What you see in these images often doesn’t match reality—they can make you spot things that aren’t there or mislead ...

Intelligence quotient, usually shortened to IQ, is a measure of how well someone uses information, logic, and reasoning compared to their peers. The first test for measuring IQ was developed by ...