What is it that you can keep after giving it to someone else?

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?

What gets wet when drying?

What question can you never answer “yes” to?

What kind of room has no windows or doors?

Give me food and I will live; give me water and I will die. 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?

What walks all day on its head?

Four jolly men sat down to play, And played all night till the break of day. They played for cash and not for fun, With a separate score for every one. When it came time to square accounts, They all had made quite fair amounts. Now, not one has lost and all have gained, Tell me, now, this can you explain?

The more you take the more you leave behind. What am I?