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 wear a red robe, with staff in hand and a stone in my throat. What am I?
Deep, deep, do they go. Spreading out as they go. Never needing any air. They are sometimes as fine as hair.
I transfer oxygen from the atmosphere to your blood
What has four wheels and flies?
A little house full of meat, no door to go in and eat.