An optical illusion is a visual phenomenon where our eyes perceive something differently from reality, tricking the brain into misinterpreting what it sees. These illusions occur because the brain ...

A brain teaser challenge is a type of IQ test that mostly involves solving a puzzle, cracking a code, finding a hidden object or mistake, or detecting the fault in the image. Brain teaser puzzles test ...

This riddle IQ test will put your intelligence and critical thinking skills to the test. Do you belong to the group of sharpest minds in the world? Go ahead and find out now! Riddles are a type of ...

ChatGPT is the first nonhuman subject I have ever tested. In my work as a clinical psychologist, I assess the cognitive skills of human patients using standardized intelligence tests. So I was ...