Q: What is the best Christmas present in the world?

Q: What is the best Christmas present in the world?
A: A broken drum, you just can't beat it!

This is a pun. The word beat could mean to strike (as in with a drumstick in this case) or it could mean to defeat (as in to find something that is better than it in this case).

This sounds like a dad joke to me, so if you are a dad, you are obligated to tell this within 24 hours of now and keep telling it periodically forever.