Answer:
You buy me to eat, but never eat me. What am I?
I widen my jaws when you poke two fingers in me. I especially like to devour papers
I move without wings between silken strings. I leave as you find my substance behind
I am a fruit. If you take away the first letter of my name I become a crime. What am I?
What is brown and sticky?
No matter how little or how much you use me, you change me every month.