Answer:
I always have to work with something in my eye.
What has 3 feet but no toes?
If I have it I don't share it. If I share it I don't have it. What is it?
What can be cracked before it's used?
I am heavy forward but backward I am not. What am I?
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.