Kids Riddles

Question: When do you go at red, but stop at green?

Question: I am an instrument that you can hear, but you can not touch or see me.

What am I?

Question: A cowboy rode to an inn on Friday. He stayed two nights and left on Friday. How could that be?

Question: A man is walking through the park one day and sees a group of four boys standing in a circle. A smaller boy is holding a large stick and hands it to a larger boy saying "I couldn't do it, your turn."

The larger boy swings the stick twice and the other two boys go to the ground. The smaller boy says "I'll get 'em next time." The man walks away smiling.

What just happened?

Question: A man wants to buy a used car. He finds a beautiful Buick for $9500, but he buys it without paying a dime.

How did he manage this?