Answer:
I am a room that has a roof but no walls. What am I?
What gets sharper the more you use it?
I am always around you but often forgotten. I am pure and clean most of the time, but occasionally rotten. What am I?
I am black when you buy me red when you use me when I turn white you know it’s time to throw me away.
What room do ghosts avoid?
No matter how little or how much you use me, you change me every month.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic