Best short riddles

Every night I'm told what to do, and each morning I do what i'm told. But I still don't escape your scold.

What came first, the chicken or the egg?

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.

Each morning I appear to lie at your feet. All day I will follow no matter how fast you run, yet I nearly perish in the midday sun.

Which reindeer loves to go to outer space?

There’s a key that opens no doors but fills your stomach, what key is it?

Tommy Tucker took two strings and tied two turtles to two tall trees. How many T’s in that?

I go in hard. I come out soft. You blow me hard. What am I?

How do you get to Carnegie Hall?

They are twin sisters, same height; they work in the kitchen, arm in arm. Whatever is cooked, they always try it first.