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

This brain teaser challenges you to use Sherlock-like skills and a high IQ of 161 to find the hidden odd crown among the ...

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 ...

An optical illusion is a visual phenomenon where our eyes perceive something differently from reality, tricking the brain ...

Test your perception with this optical illusion IQ challenge! Only the top 1% can spot the hidden heart among animal paws in just 9 seconds.

New York City, NY, Aug. 03, 2025 (GLOBE NEWSWIRE) -- Real IQ Test, the rising leader in online cognitive self-assessment, proudly announces its groundbreaking free IQ test online with instant results, ...

New York City, NY, Aug. 23, 2025 (GLOBE NEWSWIRE) -- In a major step toward democratizing cognitive assessment in the digital age, BestIQTest.org has launched its newly upgraded free IQ test with ...

A model has revealed the very strict criteria she has for men — even giving them an IQ test to take on the first date. Candice Kloss, from New York, US, who hit the headlines last year after revealing ...