I speak without a mouth and hear without ears. I have no body, but I come alive with the wind. What I am?

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

The more you take, the more you leave behind. What am I?

What has keys but can't open locks?

What has a head, a tail, but no body?

What comes down but never goes up?

I fly without wings. I cry Without eyes. Whenever I go, darkness flies. what am I?

What has one eye but can't see?

What have an endless supply of letters?

I am tall when I am young and short when I am old. What am I?