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Brain Game: 'O' for 100

Here's a brand new mentalfloss.com Brain Game Free-for-all Friday challenge.

Morning Cup of Links: Basement Vodou

Miss Cellania

The news came out yesterday that a billion people are on Facebook. And just look at the wonderful things they contribute!

Joseph Kittinger: The First High-Altitude Jumper

Chris Balogh

Wikimedia Commons Next week, “Fearless Felix” Baumgartner will attempt the highest, fastest free fall in history when he leaps out of a capsule 23 miles above Roswell, New Mexico wearing just a pre

The Late Movies: Guess The Theme 72

Mark Arminio

It's Thursday, it's late, it's time once again for the game that's sweeping the nation, GUESS THE THEME! All the clips below have something in common.

The Missing Links: One Billion Friends

Colin Patrick

It Ain’t A Real Event Until the Internet Memes It The Presidential debate gets the lightsabers and bad photoshopping and McKayla Maroney we all knew were coming. * Slurpee. Old Hot Dog.

A Wooden Adding Machine

Chris Higgins

When I want to add two numbers, I use a calculator. Made of metal.

11 Essential Talking Points for Mount Rushmore Enthusiasts

Ethan Trex

Gutzon Borglum began carving Mount Rushmore on this date in 1927. Here's everything you need to know about the famous tourist

At the Libraries: Rowling Breaks Records

Miss Kathleen

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

7 Legendary Monsters of South America

Miss Cellania

It should be no surprise that a continent with extremely high mountains, extensive waterways, and dense rainforests filled with undiscovered species would have many legends of monsters.

How a Murder Trial Inspired the Modern Radio Format

Kara Kovalchik

Wikimedia Commons In its early days, radio was a medium for live entertainment. The dramas, comedies, and music were all performed in the studio at the time of broadcast.

Does Eating Celery Really Result in Negative Calories?

Matt Soniak

Wikimedia CommonsSnake oil salesmen all over the web would have you believe that, for a few easy payments, they'll reveal to you a diet focused on “negative calorie” foods.

Introducing the mental_floss iPad App!

Mangesh & Jason

We're very excited to announce the launch of the iPad version of mental_floss magazine! The app is free, and if you download it now, you can get the new issue free as well (thanks, Boeing).

Brain Game: The Rare Triple

Good luck with today's mentalfloss.com Brain Game Think Thursday challenge: Four Epistles in the New Testament are divided into two books each, but only ONE is divided into THREE different b

Morning Cup of Links: The Croods

Miss Cellania

TV newscaster Jennifer Livingston calls out a bully on air for calling her fat. Then she concisely explains how not only ridiculous but contagious his behavior is.

The Late Movies: Harpo Marx, Harpist

Chris Higgins

Harpo Marx, the "silent" Marx brother, was a phenomenal self-taught harpist -- hence the nickname.