Riddle: A man walks up to a boy with many wet pennies in his had. They were standing by the fountain and the change machine.
"I think you stole those pennies from the fountain, little boy," the man says.
"I did not! I got them from that change machine!" insisted the boy.
Why did the man not believe the boy?
Answer: Change machines don't give out pennies, just dimes, nickles, and quarters.