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The Math Question That Stumped the Internet

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 (Kenneth Kong/Facebook)

Last weekend, a TV host in Singapore posted a math logic problem that had people all over the world arguing about the answer. It's a good example of the kind of math that has won Singapore accolades for math instruction and high scores on the Program for International Student Assessment (PISA) test. Finally, math took center stage for a moment of viral Internet fun. Terrance Foss broke down the short-lived phenomenon for The Atlantic and Katherine Schulten turned the fuss into a lesson for the New York Times Learning Network.

But the real question is--can you figure out when Cheryl's birthday is?


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