What is seen in the middle of March and April that can’t be seen at the beginning or end of either month?

I come from a mine and get surrounded by wood always. Everyone uses me. What am I?

How can the number four be half of five?

What gets wet while drying?

How many letters are in the alphabet?

This belongs to you, but everyone else uses it.

What comes once in a minute, twice in a moment, but never in a thousand years?

What can you hold in your right hand, but never in your left hand?

You measure my life in hours and I serve you by expiring. I’m quick when I’m thin and slow when I’m fat. The wind is my enemy.