Annie Murphy Paul is the author of the forthcoming book Brilliant: The New Science of Smart. What makes a group intelligent? That is: What enables a team of people to effectively solve problems and ...

Brain teasers and puzzles are a great way to enhance your child's cognitive skills. It helps them learn better, makes them curious, and challenges their brains to identify new and unique solutions.

A common way to measure intelligence is through IQ tests, which assess abilities like problem-solving and critical thinking. But how do countries around the world compare when it comes to average IQ ...