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?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

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

I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

Using eight eights and addition only, can you make 1000?

If eleven plus two equals one, what does nine plus five equal?

A man dies of old age on his 25 birthday. How is this possible?

A man is found unconscious in front of a store at two in the morning. His head is bleeding and there’s a brick laying next to him. When the police arrive, they carry the man to jail. Why did they arrest him?

Why is 6 afraid of 7?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?