This holiday-themed brainteaser looks simple, but it's quietly tripping up adults everywhere. A math teacher walks us through ...

A leading educator has weighed in on the debate surrounding a seemingly impossible math problem allegedly set as homework for a 5th grader in the U.S. The math question first came to light after a ...

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Everyone agreed on the first step: Solve inside the parentheses, for 2+2=4. But after that, people split down two paths. Some multiplied first, while others divided, leading to different answers—1 and ...