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Brain Game: Math Square #17

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: Simplicity

Miss Cellania

25 Historical Photographs.

5 Questions: Happy "Vern"al Equinox

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7 of the Handiest Creatures in the Animal Kingdom

the mag

by David GoldenbergFor centuries, philosophers claimed that the ability to make tools separated man from beast.

This 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

You guys know I'm always a fan of the latest memes, and so of course I have a special place for Bizarro Keyboard Cat - play them off!

The Weekend Links: Saturday Edition

Allison Keene

Can't remember the way that certain TV show's theme song went? You might find it here: 22 TV Themes in 7 Minutes. Two guys, a guitar and a keyboard (and in one instance, a kazoo).

Lunchtime Quiz Leftovers

Jason English

The Late Movies: Alice in Wonderland

Miss Cellania

Alice's Adventures in Wonderland was written by Lewis Carroll in 1865. The fanciful story was tailor-made for film adaptation, although Carroll had no way of knowing that in the 19th century!

The Fictional College Final Exam

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As long as you can find the right DVD, television and film’s fake colleges are always in session. How well do you know your fictitious colleges? Take the quiz to find out your grade.

The Quick 10: The Poop on Peeps

Stacy Conradt

I love Peeps. I don't want them right out of the box, though. I prefer to cut a small slit in the box, then let them sit around for a few days getting a little bit crunchy.

If Blood Is Red, Why Do Veins Look Blue?

Matt Soniak

Note: Readers commenting under today's Friday Happy Hour post brought up an age old question: "Is blood blue when it's inside the veins?" Matt Soniak kindly put together this

"Life," the New "Planet Earth," Premieres Sunday, 8pm

Chris Higgins

Premiering Sunday (March 21) at 8pm on the Discovery Channel in the US: Life, a new documentary miniseries from the producers of Planet Earth.

5 Things You Didn't Know About Martha Stewart

Ethan Trex

You know Martha Stewart as the crafts-and-cooking guru who has dominated print and broadcast media. You know her as the stockowner who ran into a bit of trouble with the feds.

Crazy Things Your Teachers Told You

Jason English

Every Friday, 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. Very casual.