I have eight fingers and two thumbs but I do not live. What Am I?

What's the only room from which no one can enter or leave

What breaks yet never falls, and what falls yet never breaks?

There were three women in all the swimming costumes!
One was happy and the other two were sad!
The happy one was crying and the sad ones were smiling.
Why was this?

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 every person. What am I?

What do you answer even though it never asks you questions?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

During which month do people sleep the least?

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?