easy to get in but hard to get out who am i

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.

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

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

You see a boat filled with people. It has not sunk, but when you look again you don’t see a single person on the boat. Why?

What English word has three consecutive double letters?

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

If I had four eggs-and a thief gave me three-and my rooster laid five more-how many eggs do I have?