Brain teasers are an excellent way to stimulate your mind, improve logical reasoning, and sharpen critical thinking skills. These visual puzzles challenge your observation skills and test how quickly ...

A tricky new online quiz, which claims to tell you whether your knowledge would help you pass an advanced IQ test, is baffling the web. Shared on Playbuzz by Cody Cross, the general knowledge test ...

Less than one in five people pass this IQ test, thought to be the shortest in the world only three questions long. The Cognitive Reflection Test has a pass rate of just 17 per cent, leaving the ...