The Number of the Day: 29.6%

Will Treece

Paper is thrown 29.6% of the time in Rock, Paper, Scissors, making it the most unlikely option.

The Late Movies: Un-American Idols

Ransom Riggs

It's easy to forget, what with the iron grip American Idol seems to have on our airwaves every year, that the series is a franchise reproduced in a lot of other nations.

Neatorama presents: HDYK? "“ {day 5}

David K. Israel

It's an all-new 5-day trivia hunt! Co-puzzle Master Josh Halbur and I are happy to bring you the next How Did You Know?

The Quick 10: Happy Birthday, MTV!

Stacy Conradt

MTV turned 29 yesterday! I wasn't around for that first day they started broadcasting videos on 1981, but it makes me feel old anyway.

Ultra Slo-Mo Lightning Strike (9,000fps)

Chris Higgins

Photographer Tom A. Warner managed to catch lightning strikes at 9,000 frames per second (that's 300x slower than realtime video).

A Nintendo Nuptial

Colin Patrick

From Imgur comes the geek wedding invitation to end all geek wedding invitations.

How Do You Insure an Astronaut?

Special Guest Star

When it comes to buying an insurance policy, high risk jobs such as acting, working on an oil rig, or being an aircraft pilot will obviously push up the price.

Ants are Amazing

Ransom Riggs

I spent many an afternoon during my childhood battling ants in my backyard.

Brain Game: Math Square #35

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 (the red square).

Morning Cup of Links: Washer Seizure

Miss Cellania

These Are Their Stories. Different artists were invited to illustrate one-line episode summaries of the TV series Law and Order, in whatever manner they see fit.

The Number of the Day: -40

Jason English

-40 degrees Fahrenheit and -40 degrees Celsius are the same temperature. Related Fact: In the original Celsius temperature scale, 0 degrees was the boiling point of water, and 100 degrees was the f

50 Amazing Facts for Our 50th Issue

Jason English

We recently published our 50th issue. In honor of our little milestone, here are 50 fun facts we've picked up over the years. 1.

Weekend Links: Judge a Book by Its Cover

Allison Keene

One of the best things about summer has to be fruit, most particularly, the watermelon.

Last Week's Most Popular Stories

Jason English

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

My first _flosser sighting!

David K. Israel

I've lived in Los Angeles for five years. I've also been writing for mental_floss for five years. Somehow it took five years to spot my first _flosser on the streets!