Answer:
My days are numbered. What am I?
The more you add the less it weighs. What is it?
I am always around you but often forgotten. I am pure and clean most of the time, but occasionally rotten. What am I?
What is black when you buy it, red when you use it, and gray when you throw it away?
I am a tool for fairies.
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk