Best riddles for teens

I get whiter the dirtier I get. What am I?

A container without hinges, lock or a key, yet a golden treasure lies inside me. What am I?

The cost of making only the maker knows, Valueless if bought, but sometimes traded. A poor man may give one as easily as a king. When one is broken pain and deceit are assured.

Shadow drove into the Speedy Service Station and pulled up to the pumps. "Fill it up, please," said Shadow. " This may sound strange," said the owner, "but I'd rather fill two cars from out of town than one car from this town." Shadow looked across the small town and replied, "I know just what you mean." Why would the owner feel this way?

The digits 0-9(0,1,2,3,4,5,6,7,8,9) can be rearranged into 3628800 distinct 10 digits numbers. How many of these numbers are prime?

It's red, blue, purple and green. No one can reach it, not even the queen.

What you cannot hold it but it is yours?

What has a foot but no legs?

A man was driving a truck at 60 mph. He did not have his headlights on and the moon was not up. Yet he did not hit the woman who crossed the road. How?

This is a newspaper headline: Workers Strike - Want to Make Less Money! What is going on?