Answer:
I have an eye, but I can't see. I usually have to work with something in my eye. What am I?
What is the edge of earth and bread?
There is one in every corner and two in every room.
I hold two meanings. With one I may be broken with the other I hold on.
I am heavy forward, but backward I'm not. What am I?
Give it food and it will live, give it water and it will die.