Answer:
I hatch without food
I have a little house in which I live all alone. My house has no doors or windows and if I want to go out I must break through the wall.
If you lose me, you may cause people around you to lose me too. What am I?
I build bridges of silver and crowns of gold. What am I?
I have a frame but no pictures. I have poles but not standing up. What am I?
No matter how little or how much you use me, you change me every month.