Answer:
The more you take away the bigger I get. What am I?
I am always around you but often forgotten. I am pure and clean most of the time, but occasionally rotten. What am I?
The more you take, the more you leave behind. What are they?
I am the word that is always spelled correctly by everyone.
Tear me off and scratch my head, what once was red is black instead. What am I?
I flow from the Homerβs mouth when he sees doughnuts.