THE KNOWLEDGE FEED

Paul Winchell was the first person to patent an artificial heart prototype. He also invented the retractable ball point pen, and was a ventriloquist from <em>The Paul Winchell Show</em> on Jerry Mahoney's radio program in 1943.

Paul Winchell was the first person to patent an artificial heart prototype. He also invented the retractable ball point pen, and was a ventriloquist from The Paul Winchell Show on Jerry Mahoney's radio program in 1943.

5 Questions: More -O Brands

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5 Questions: Rico-la

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5 Questions: Huff

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Brain Game: A Year at Home

Sandy Wood

Glenn Beck vs. Jon Stewart: The FCC Complaint Quiz

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Every year, the Federal Communications Commission receives hundreds of thousands of complaints about alleged violations of their rules against "obscene, indecent, or profane programming."

Through the Freedom of Information Act, it's possible to get copies of these complaints, with the names and address of the complainants redacted. We've put together a few complaints the FCC has received about Glenn Beck and The Daily Show. Can you tell which complaint is about which host?

Name the R-S-T-L-N-E Presidents

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Today’s quiz was inspired by Wheel of Fortune. There have been 10 U.S. Presidents whose last names began with the letters R, S, T, L, N or E. Can you name them all in 90 seconds?

A Nickelodeon Quiz

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Half the fun of Nickelodeon was tuning in to find out what those kooky producers could dream up next. How often did you tune in?

5 Questions: Cry Me a River

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Harry Potter Spell or Part of the Human Anatomy?

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Can you tell your magical spells from your anatomy terms?

Sibling Underlings

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These less-celebrated brothers and sisters may still know that their parents are lying when they claim to “love all their children equally,” but at least they've now been immortalized in a mental_floss quiz. Read each paragraph and select the story you think is false. Then hit up our blog and let us know how you did.

Top Ten Ts

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Dozens of movies with one-word titles have become hits. Exactly 10 feature films with one-word titles beginning with the letter "T" have managed to break the $100 million plateau at the U.S. box office. How many of these 10 can you name in ten minutes? A hint? Two of them are from the 1980s, three from the 1990s, and the rest from the 2000s. The timer begins when you key in your first entry. Good luck!

5 Questions: "Whip" It!

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