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What do the big diamond-shaped signs with red yellow and blue diamonds mean?

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Many buildings in my area have a big red, yellow and blue diamond-shaped sign with numbers on it. Do you know what this sign means?

Why do movie posters look so much alike?

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Tons of movie posters are blue and orange because the colors contrast so well. Learn more about why movie posters look alike at HowStuffWorks.

10 Science Questions You Should Really Know How to Answer

science.howstuffworks.com/innovation/science-questions/10-science-questions-you-should-know.htm

Why is the sky blue? What's relativity all about? If you're thinking, "something to do with light and physics and stuff," we have some short explanations for you.

5 Animals Whose Blood Isn't Red

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Not all animals have red blood flowing through their veins. Meet some our blue-blooded, green-blooded and, yes, transparent-blooded fellow creatures.

How Much Do You Remember About the Books of Dr. Seuss?

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If you know the phrase, "One fish, two fish, red fish, blue fish" by heart, then this is the quiz for you! Will you whiz through this quiz or flop like a mop?

Can my car tell me the speed limit?

electronics.howstuffworks.com/gadgets/automotive/car-speed-limit.htm

Sticking to the car speed limit is the best way to avoid flashing blue lights. Isn't there a way to learn the car speed limit from, well, your car?

King of the 'Hill Street' Quiz: How Much Do You Know About TV Icon Steven Bochco?

entertainment.howstuffworks.com/steven-bochco-quiz.htm

Take our HowStuffWorks quiz to learn more about Steven Bochco, creator of 'Hill Street Blues,' 'L.A. Law' and other groundbreaking TV dramas.

What's the Secret Behind the Numbers on the Interstate Signs?

auto.howstuffworks.com/numbers-on-interstate-signs.htm

Why is one road named I-5 while another is I-480? We take a closer look at the digits on those red, white and blue shield-shaped signs.

Can You Answer These Questions Every Ford Owner Should Know?

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Think you're a Ford fanatic? Live in the Blue Oval? Go Further than your friends by testing your knowledge and proving that you're Built Ford Tough!

Can You Identify All These Police Vehicles?

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All police vehicles are not created equal. Can you tell which vehicle is under the flashing red and blue lights that are going to put a crimp in your day - or save the day?

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