Answer:
What has 13 hearts but none beat?
Talks like this, a green wise man does. Guess my clue, you will.
Who is he that runs without a leg. And his house on his back?
It is a sound of empty, speak and it'll talk back plenty. But all the more you yack, you'll get the same words back.
A box without hinges, lock or key, yet golden treasure lies within.
What do angels sing in the shower?