Average IQ varies depending on geographic location, resource access, and much more.

The intelligence quotient (IQ) is a standardized measure of cognition, or your ability to think, understand, reason, learn, and remember. By design, the average IQ score is 100. Higher IQ scores are ...

Who has the highest IQ in history? One answer would be: a 10-year-old girl from Missouri. In 1956, according to lore, she took a version of the Stanford-Binet IQ test and recorded a mental age of 22 ...

This is a straightforward vocabulary test, so if you've ever taken the SATs, this will feel totally familiar. Take the quiz here. It's highly unlikely you'll ever need to write something without spell ...