This brain teaser is a quick test of intelligence. Who do you think will fall? Set a timer for 12 seconds and get down to ...

This brain teaser IQ test challenges readers with the highest level of intelligence to identify the odd one out in the ...

After 53 years compiling The Observer’s beloved weekly Azed crossword, Jonathan Crowther is going monthly. He tells us about ...

Use this prompt when you’re making a tough decision or stuck solving a problem. It works by helping you break out of ...

Time to test your mind! This viral optical illusion on Reddit makes a straight grid appear warped. It’s all about clever circle placement – your brain sees a bubble that doesn’t exist.

Lena Dunham is sitting in bed, draped in a pink tulle gown fit for a princess, reading a book about torture. It’s a prop for our photo shoot, which is taking place in an eccentrically decorated hotel ...