Q: What occurs once in a minute, twice in a moment and never in one thousand years?
A: The letter M

Q: What has 4 eyes but can’t see?
A: Mississippi

Q: If I have it, I don’t share it. If I share it, I don’t have it. What is it?
A: A Secret.

Q: Take away my first letter, and I still sound the same. Take away my last letter, I still sound the same. Even take away my letter in the middle, I will still sound the same. I am a five letter word. What am I?
A: EMPTY