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Get 20% Off in the mental_floss Store Today!

Mangesh & Jason

Our April Fool's Sale ends tonight at 11:59pm Eastern Time. Take advantage of big savings now and get 20% off t-shirts, books, games and more! Just use the coupon code GOTCHA before checkout.

Weekend Links: Dear Blank, Please Blank

Allison Keene

A nice time-lapse photo where you control the day and night via your mouse. Does it make you feel powerful? It is DAY! And now NIGHT! * A really interesting video on what motivates us.

The Late Movies: April Fool's Day 2011

Miss Cellania

In case you weren't everywhere on the internet for the holiday, here are some of the videos that were created especially for April Fool's Day 2011. Darth Vader's Ice Cream Truck I

How Did You Know? – Day 4 Level 3/Bonus Round

David K. Israel

YES! You can play this challenge/contest without knowing a thing about the weekly hunt! It's sort of a one-off - a stand-alone if you will.

The World's Greatest Hoaxer

Colin Patrick

In honor of April Fool’s Day, Gawker has put together an entertaining post on Alan Abel, often referred to as the world’s greatest hoaxer. Among Abel's legendary pranks was his creation of the

Baseball's Best (and Weirdest) Ballpark Promotions

Scott Allen

In the 1960s, Major League Baseball teams began giving away bats, balls, caps, and helmets to lure fans to the ballpark. As Mets vice president James K.

Gmail Motion

Chris Higgins

OMG, you guys. Finally, Gmail Motion is here! Now you can use easy, real-world gestures to control Gmail. Want to send a message? Just pantomime licking a stamp and putting it on an envelope.

Rename Your School for Your Favorite Teacher

Jason English

On Fridays, I post a series of unrelated questions meant to spark conversation in the comments. Answer one, answer all, respond to someone else's reply, whatever you want.

neatorama presents: HDYK? – {day 4}

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 Weird Week in Review

Miss Cellania

All the stories have been thoroughly checked this week, and only one is an April Fool.

Madagascar's Legendary Man-Eating Tree

Ransom Riggs

It's probably one of the most fantastical tales in all of botany: the legend of the man-eating tree.

Brain Game: Apollo's Friday

It's Free-for-All Friday here at the mentalfloss.com Brain Game. And to allay your suspicions, there's no fooling in today's game, except for the title.

Morning Cup of Links: April Fool!

Miss Cellania

April Fools' Day Pictures: 4 Historic Science Hoaxes. They weren't just for one day, either. * 5 Wacky Internet Pranks That Can Get You Jail Time.

The Quick 10: 10 Trademarked Colors

Stacy Conradt

Thinking about starting a chocolate company and using a rich purple hue for the wrappers? Think again - there’s already a lock on that color.

5 Things You Didn't Know About Duncan Hines

Ethan Trex

You may have a box of Duncan Hines cake mix in your cupboard, but you may not have known that, unlike Betty Crocker, Hines was a real person.