Answer:
What can be any size or shape and gets bigger the more you take from it?
Its days are numbered.
The more you have of me, the less you see. Who am I?
A job that involves sitting in a highchair, wearing a black gown and smacking things with a mallet
I saw the dead bring forth the living. I saw the living bring forth the dead. What did I see?
People take me on walks and I run and have fun. What am I?