IQ tests are excellent for assessing an individual's intelligence. These types of puzzle challenges present readers with problems in the form of picture puzzles, math puzzles, or a statement. You have ...

A Brain teaser is a type of puzzle, which is a short, playful puzzle designed to stretch your mind and make you smile. It ...

Today’s challenging puzzle is to find the letter “C” among the “O” sequence series. So, if you think you're a genius with an 140+ IQ level, then find the letter “C” in the sequence of “O” sequence ...

Quora Questions are part of a partnership between Newsweek and Quora, through which we'll be posting relevant and interesting answers from Quora contributors throughout the week. Read more about the ...

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 ...