THE KNOWLEDGE FEED

Why Are Unidentified People Called John or Jane Doe?

Matt Soniak

From the courts to the morgue, if the government doesn’t know someone’s name or wants to withhold it, they give them one of these as a placeholder.

The World's Biggest Nations

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We've asked you about the world's most populous countries, but today's Lunchtime Quiz is about the nations that are largest geographically. How many of the world's 10 most sizable nations can you identify in five minutes? A winning score is 6 or more. And yes, spelling counts. Good luck!

12 Beautiful Works of Tape Art

David K. Israel

Artist Rebecca Ward constructs fun works of art that redefine the architectural space she's working in.

Brain Game: Short Spell #7

It's time for a new Wednesday Wordplay challenge here at the mentalfloss.com Brain Game. Good luck! ONE of the four words in the following list is misspelled.

Morning Cup of Links: The MRI Love Game

Miss Cellania

Can your feelings of love show up on an MRI scan? You betcha, especially if those emotions are made into a competition. * Whitney Houston's Road to Ruin.

From Curing Dandruff to Finding You a Husband: 11 Amazing Benefits of Listerine

Stacy Conradt

Is there anything Listerine can't do?

5 Questions: Freshly Squeezed

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Things Crashing Into Libraries

Miss Kathleen

Each week Miss Kathleen provides links to a variety of stories about libraries, authors, and books.

The Late Movies: Watch Six People Get Their Hearts Ripped Out

Erica Palan

Happy Valentine’s Day, _flossers. Instead of the usual roundup of love songs (or worse: breakup songs), I thought we’d get a little gory this year.

"Tweet Me," "Mommy Issues" and More Offbeat Valentine's Day Candy Hearts

Stacy Conradt

If you're a fan of chalky candy (I am!), you've probably noticed that Necco's Sweethearts Conversation Hearts have gotten a bit of an overhaul in the past couple of years.

Guns N' Roses Song or Book at the CVS Checkout?

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All the seats in the CVS waiting area were taken last night, so I waited for my prescription by the display with the life-affirming books. That's where I came up with and wrote down this quiz, and where my furious scribbling made everybody nervous. Are these titles songs from Guns N' Roses albums or books featured by the checkout counter in CVS?

Mr. Happy Man Loves You

Chris Higgins

Looking for a feel-good way to start your Valentine's Day? Check out Mr.

12 Ways to Give Your Heart

Miss Cellania

When you really want to symbolize giving your heart to someone you love, you might want to make it as realistic as you can.

How Hollywood Says "I Love You"

David K. Israel

My friend Matt Belinkie put together this stupendous, big ol' mashup of 95 declarations of love.

Brain Game: Fort-y

There's no defense against trying the Tuesday Test Time challenge for today's mentalfloss.com Brain Game. Good luck! Of all U.S.

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