Answer:
I am taken from a mine and shut in a wooden case from which I am never released. Yet I am used by almost everybody. What am I?
I cannot be burned in fire or drowned in water
I am the reaction after enjoying soda.
I have a small hill with seven holes. What am I?
What can travel around the world while staying in a corner?
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk