Answer:
I fill a room but take no space. What am I?
I may seem real but it always turns out I was never there in the first place... you only see me during a certain resting stage.
I start new then become old. Start clean but become dirty. I usually start big then become little. What am I?
I am an object which is used in baseball. During the day I can't be seen at all. What am I?
I am owned by the poor, the rich do not need me. If you eat me, you will die! What am I?
What never gets any wetter no matter how hard it rains?