THE KNOWLEDGE FEED

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Today's 5 Questions

Jason English

Since way back on September 16, 2002, research editors Sandy Wood and Kara Kovalchik have been cranking out daily five-question quizzes.

Brain Game: Math Square #25

The nine white squares inside the main red grid should be filled with the digits 1 through 9. Each digit should appear only once in this main grid. Two of these numbers are already provided for you.

Morning Cup of Links: Grad Gifts for Nerds

Colin Patrick

Are you a die-hard LOST fan still coming to terms with the fact that it will all be over this week?

Strange Geographies: Death in Venice

Ransom Riggs

If you've got the money, you can live in Venice. If you're a romantic, you can die in Venice. But you cannot be buried in Venice.

Last Week's Most Popular Stories

Jason English

In case you weren't obsessively refreshing mentalfloss.com all week, here's what you

The Weekend Links: Sunday Edition

Allison Keene

From Flossy reader Jessica, here are the secret lives of 20 obscure elements we simply couldn't do without. * A really cool population map about where we live (in the US), and where we're

The Stories Behind Graduation Traditions

Ethan Trex

This is a big weekend for college graduations.

The Weekend Links: Saturday Edition

Allison Keene

From great links contributor Rebecca we have the Bronte Sisters Power Dolls!

Attention Cleveland: Come to the mental_floss Retail Store on Saturday!

Jason English

Although I don't think we have any die-hard basketball fans in our Ohio office, they all seemed pretty down about the Cavaliers' loss to Boston—perhaps the last game LeBron James p

The Late Movies: Dancing Cops

Miss Cellania

Nothing goes together better than law enforcement and dancing. Really, it's like peanut butter and jelly! Police officers are dancing all over the world. Abuja, Nigeria Edinburgh,

Your Best Rugby Stories

Mangesh & Jason

Ed note: This post has been sponsored by the Warner Brother's film Invictus, out on DVD and Blu-ray on May 18th.

The Quick 7: Seven Billionaires' Kids Successful in Their Own Right

Stacy Conradt

Warren Buffett's son Peter released a book this week called Life is What You Make It: Finding Your Own Path to Fulfillment.

Making Ice Nice Since 1949: A Brief History of the Zamboni

Scott Allen

The technical name for the funny looking machine that refurbishes the ice at hockey and figure skating rinks is an ice resurfacer, but you probably know it better as a Zamboni.

Drunk History: Fredrick Douglass

Chris Higgins

If you haven't seen Drunk History, get ready to spend this afternoon laughing yourself into a stupor.

A Globe-Trotting Whiskey Mystery

Ransom Riggs

So this is fun: between 1967 and 1991, one of Canadian Club whiskey's marketing campaigns was a treasure hunt.

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