WIN with 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 two challenges at noon and another at 8PM. Every day, someone who solves the Level 3 challenge will win a prize from the NeatoShop ($25 limit)! Be sure to post your answer at the proper place by 10PM. Solve the ultimate week-long puzzle and win a prize from the NeatoShop PLUS a mental_floss t-shirt and your picture posted on the blog! Good luck. Link

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