Answer:
I get dirty when wiping things clean. What am I?
I am a fruit with seed on the outside. What am I?
I am always hungry I must always be fed. The finger I lick will soon turn red.
I'm tall when I'm young and I'm short when I'm old. What am I?
The more you take, the more you leave behind. What are they?
No matter how little or how much you use me, you change me every month.