An AI-generated brain teaser challenged readers’ logic as they struggled to figure out the correct relationship hidden in the short riddle.

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Think of this as the US student assessment meets “let’s see if my brain still works.” It’s your chance to find out if you’d rank above the average US student or if memes and useless information have ...

New research complicates the old consensus that IQ is largely fixed, and that's good news for anyone looking to boost their ...