Answer:
What do you get when you mix lemons with gun powder?
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?
What kind of coat can only be put on when wet?
I can be entertaining until you realize some pieces have been lost.
I come with a train and go with a train and the train doesn't need me but can't go without me.
When is it bad luck to see a black cat?