Who Wants A Riddle?

Here are some awesome and coolio riddles from http://riddles.com/:

This thing runs but cannot walk, sometimes sings but never talks. Lacks arms, has hands; lacks a head but has a face. What is it?
Answer: a clock

Tom and his younger sister were fighting. Their mother was tired of the fighting, and decided to punish them by making them stand on the same piece of newspaper in such a way that they couldn't touch each other.
How did she accomplish this?
Answer: Tom's mother slid a newspaper under a door, each sibling standing on each side

My voice is tender, my waist is slender and I'm often invited to play. Yet wherever I go I must take my bow or else I have nothing to say.
Answer: a violin

What has a bed, but never sleeps
A mouth, but never eats
And a bank, but doesn't own any money?
Answer: a river

Sometimes it's fun to experiment with words! Don't you think so?