Good Riddles

Question: My name can have any letter of the alphabet, but I always have 2 X's.

What am I?

Question: The first is a sign of something good,
the second says whereto;
the third is vulgar and mean,
the fourth is bound by a ring;
the fifth is the noble one.
Together they all drum.

What are they?

Question: A Florida man is running down a hall with a piece of paper. The lights flicker and he falls to the ground in tears.

What happened?

Question: There are 20 birds in a tree. A man comes and shoots one of the birds. How many birds are left?

Question: What gets broken without being held?