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

The president's actual IQ is unconfirmed, but a score of 1,775 would far exceed previous world records.

American IQ test scores have dropped during a recent 13-year period, a remarkable finding that runs counter to the well-established trend of increasing IQ scores throughout much of the 20th century.

Ever wonder which U.S. leaders are—or were—the brainiest? If you’re curious about the presidents with the highest IQ, you’re not alone. In fact, Dean Simonton, PhD, a psychologist at UC Davis, ...

Forbes contributors publish independent expert analyses and insights. Dr. Lance B. Eliot is a world-renowned AI scientist and consultant. In today’s column, I examine a social media trend that is ...