Answer:
You buy me to eat, but never eat me. What am I?
I am a person who pretends to be someone else
Tear off my skin. I won't cry, but you will. What am I?
Wind and cord combine, buzzing in the box. In all this we find, though to some the use is lost. What am I?
I come with a train and go with a train and the train doesn't need me but can't go without me.
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.