From twinkling constellations to stellar life cycles, this starry skywatching quiz will test your cosmic knowledge.

The world’s shortest IQ test, the Cognitive Reflection Test (CRT), uses three questions to tell if you’re smart enough to go toe-to-toe with bona fide geniuses. It seems easy at first, but it requires ...

For decades, studies and societal narratives have suggested that women score lower on standardized intelligence tests, are less competitive, and are less financially literate than men. But are these ...

Forget the Turing test. In Sam Altman's world, the only verdict that matters comes from physicist David Deutsch.

AI may be the new oracle, but the future depends on how we preserve human intelligence, creativity, and meaning in a digital ...

Age puzzles go back to antiquity. They challenge us to figure out how ages fit together into a pattern, using a blend of ...