Who am I? What am I?

I have two hands, but I can not scratch myself. What am I?

I can be cracked, I can be made. I can be told, I can be played. What am I?:

I have a thousand needles but I do not sew. What am I?

I am taken from a mine, and shut up in a wooden case, from which I am never released, and yet I am used by almost everybody. What am I?

My life can be measured in hours, I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe. What am I?

I'm white, and used for cutting and grinding. When I'm damaged, humans usually remove me or fill me. For most animals I am a useful tool. What am I?

I am often following you and copying your every move, yet you can never touch me or catch me. What am I?

I´m not alive but I grow; I don´t have lungs but I need air; I don´t have a mouth, but water kills me. What am I?

I am easy to lift but hard to throw. What am I?

I always follow you around, everywhere you go at night. I look very bright to people, but I can make the sun dark. I can be in many different forms and shapes. What am I?