The conversation between human and AI assistant.
What is "what is greater than God, more evil than the devil, the poor have it, the rich don't need it and if you eat it, you'll die"?
That's tricky! Can you give me another one?
Of course. Here's another: 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 human being. What am I?