Good Riddles

Question: If you aim to give us a shot, we'll riddle you.

What are we?

Question: What does a man do only once in his lifetime, but women do once a year after they are 29?

Question: Round like a apple, deep like a cup, but all the kings horses can't pull it up.

What is it?

Question: What has no beginning, end, or middle?

Question: Mary's mother had 4 daughters. May, June, July, and.....?