The World

The United States has one of the most sophisticated judicial systems in the world. Every day, courts across the country hear thousands of cases and make important rulings. Find out with the judicial system quiz.

With all of the choices available these days, how can you know what food is best for you? Test your knowledge with this nutrition quiz before you hit the grocery store.

By Josh Clark

You know that fistful of pills you take each morning? Those vitamins are essential ingredients to life. You know they're good for you, but do you know why? Take our quiz on vitamins to see if you know what those pills you pop actually do for you.

By Josh Clark

You may be a whiz in the kitchen, but just how well-versed are you when it comes to the art of cooking? Test your culinary prowess with this cooking quiz.

By Josh Clark & Sharita Sykes

This quiz is able to leap tall buildings in a single bound. Bullets ricochet off its chest (although it ducks when the emptied gun is thrown at it). Test your knowledge of superhuman ability while we stretch your brain to the limits. Pow! Kunk! Whap!

Yes, computers can make life easier, but they also can put your private information at risk. Find out how much you know -- or don't know -- about computer security by taking our quiz.

Get out your party hats and sparklers! New Year's Eve is the night when young and old stay up past midnight to ring in the new year. Fireworks blast off around the globe while bottles of champagne pour a bubbly sea of mirth. What are the different ways people celebrate New Year's, and how can you ensure good luck for the next 12 months?

When TV sets made their way into American homes in the 1940s, it marked a cultural transformation. According to the Bureau of Labor Statistics, Americans spend more than half their leisure time watching television. So what have we been watching all these years?

Grab your pigskin because it's time for football trivia. How does the QB make that ball spiral? Wouldn't "handball" make a better name than "football"? Pad up and get on the field ... the football quiz field, that is.

By Sharita Sykes

Without memory, computers wouldn't be able to store data in any way. How much do you know about computer memory?

Whether you know it or not, you probably use gears several times each day. Gears are used in a wide variety of mechanical devices including wrist watches, bathroom scales, washing machines and, of course, automobiles.

Hydraulic equipment is amazing in its strength and agility. From common backyard machines to the huge machines you see on construction sites, hydraulics make quick work of even the most difficult tasks. How much do you know about hydraulic machines?

They may look similar from the outside. But there are many significant under-the-hood differences between an electric-powered car and a car that makes use of an internal combustion engine. How much do you know about electric cars?

As the saying goes, home is where the heart is. But just how does one go about building a home in the first place? Find out some fun facts about this detailed process by taking the quiz.

Do you remember when Web pages were in basic HTML and there was no such thing as online social networking? Things have changed fast, but do you know where the Web is going now? Take our Web 3.0 Quiz to learn about the future of web technology.

Without web servers, there wouldn't be an Internet. Do you know how web servers work to get you online? Take this quiz and find out.

It wakes you up, gets you going, and may even cure your headache. But how much do you really know about caffeine?

Think you know everything about the mafia and organized crime? Test your knowledge of the mafia with our mafia quiz.

It can be a sign of love, grief or respect worldwide. Kissing is a natural act that gives millions of people physical and psychological satisfaction, but where did it originate? Why does it make us feel good?

They are the most notorious species of shark, boasting 3,000 jagged teeth and a bite that kills. See how much you know with this quiz.

Astronauts have a reputation for being the brave and skilled few willing to risk their lives by strapping themselves aboard a rocket and blasting into outer space. How much do you know about this dangerous job?

They are notoriously savage and bloody when they attack, but behind a sharks' vicious reputation is a variety of different shapes, sizes and demeanors. Learn all about the different types of sharks.

Wolves supposedly howl at it, a fairy tale claims a cow once jumped over it and legends say if you look hard enough, there's a man in it. Yes, the moon has a prominent place in popular culture, but there's a lot you might not know about Earth's little orbiting friend. Why doesn't it have soil? Why is its gravity so important? And are we really thinking of going back soon?

An MRI machine is more than just a big, claustrophobia-inducing tube. How much do you know about what's going on inside -- or what's going on inside your body while you're in there?

This ocean area has a reputation for devilry and danger. How much do you know about the Bermuda Triangle? Find out with our Bermuda Triangle Quiz.

By Nathan Chandler