How Did You Know?

Neatorama and mental_floss have teamed up for another chance for you to win prizes! The latest How Did You Know contest starts today at mental_floss. Every day this week, you'll get a challenges at noon at mental_floss. Every day, someone who solves the challenge will win a prize from the NeatoShop ($25 limit)! Be sure to post your answer at the proper place. Solve the ultimate week-long puzzle and win more prizes from mental_floss! PLUS there's a LIVE! podcast for our Bonus Round, tonight at 9pm ET. Get all the details at mental_floss. Good luck! Link

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