The World

'Friends' had us glued to our TV screens for a decade. Are you the biggest fan?

Welcome to the ultimate NBA Trivia Quiz! Test your knowledge of NBA history, from thrilling Finals to jaw-dropping dunks. Challenge yourself and celebrate the league's unforgettable moments!

By Patrick J. Kiger

Harry Potter's professors ranged from brilliant to boring. Test your knowledge of Harry Potter professors in this quiz from HowStuffWorks. Think you have what it takes?

By Kate Kershner

Nearly 40 years after his death, Elvis Presley is still the King. See how much you know about this icon of movies, music, pop culture and unusual appetites. (Fried peanut butter and banana sandwiches anyone?)

By Karen Kirkpatrick

Grab a bullwhip, because it's time to test your "Indiana Jones" knowledge. Indiana Jones may have been a fictional adventurer in the film franchise, but he lives on in fandom. Find out if "Indiana Jones" trivia is your superpower.

By Laurie L. Dove

From Linus' philosophical maxims to Lucy's bossy orders, "Peanuts" is an endearing story that has pervaded the homes and hearts of readers worldwide. See how much you know about the beloved comic strip, TV specials and movie.

By Sarah Gleim

Think you can pass our invention timeline quiz? Test your knowledge to see if you know how long these technologies have been around.

Think you can pass our famous inventors quiz? Test your knowledge to see if you know the minds behind the innovations.

No matter how much you tended to argue with your own mom, the beloved moms on your favorite TV shows were always there for you with a bit of advice or just a friendly smile.

Do you have what it takes to earn ultimate stink-out points? Take this fart facts quiz and find out!

You've been working out like crazy lately, but what have you been putting in your body? You don't want to undermine all that hard work with too many high calorie foods.

By Debra Ronca

The best bartenders have an encyclopedic knowledge of cocktails and know how to keep things rolling while letting the liquor flow. Take our quiz to test your knowledge of all things bartending!

By Bambi Turner

There's no shame in admitting that we don't have all the answers. But there is a little shame when we're spewing scientific nonsense to our friends and colleagues. Test yourself to determine what so-called "science" you've misunderstood for years.

By Kate Kershner

Think you're a sweet child o' the '80s with a fever for Aqua Net that only Dr. Feelgood could handle? Open up and say … ahh while we test your '80s hair-band trivia.

By Kate Kershner

We have an astonishing capacity to accept scientific-sounding concepts if we hear them repeatedly. Test your ability to differentiate between real science and fictitious "common knowledge."

By Patrick J. Kiger

Cannons, howitzers and other artillery pieces produce more bang for the buck, but they're not so easy to carry in a holster. That's why armies need firearms. Now it's time to see if you're a firearms fanatic or a fizzling dud.

Long before the Wright brothers guided their fixed-wing aircraft over the North Carolina dunes, daredevils and engineers worked to decode the secrets of sustained heavier-than-air human flight. What do you know about the physics of flight?

By William Harris

Feel that wind? Fwooooshhhh!!! Fwwwooooshhh!! Quick, somebody put up a wind turbine. Test your knowledge with this quiz.

Are you ready for hot fun in the summertime because school's out and it's time for a surfin' safari? Then take our lazy-hazy-crazy days of summer quiz to test your knowledge of the aforementioned summer songs and more.

By Elizabeth Beasley

How much of what you know about mental health is fact and how much is fiction? Unravel the yarns of mental illness with our mental illness myths quiz.

Sure, you may watch a lot of TV crime dramas, but that doesn't mean you're ready to put on the gloves and perform an autopsy yourself. Take Dr. G's quiz to see how much you know about forensics.

By Discovery Fit and Health Writers

It's time to show off your independence! And your patriotic knowledge about the Declaration of Independence, fireworks and hot dogs. Let's hear it for more pomp and less circumstance!

Play doctor in our ultimate diagnosis quiz! Test your medical knowledge, and see how much you know about rare medical disorders.

By Discovery Fit and Health Writers

Love is in the air -- or at least on the screen. But do you know the difference between a meet-cute and a match made in heaven?

By Elizabeth Beasley

How would you fare if you landed in Beijing on the eve of Chinese New Year? Test your knowledge of this elaborate holiday.

By John Kelly