Answer:
What gets sharper the more you use it?
You bury me when Iām alive and dig me up when Iām dead. What am I?
In Paris but not in France the thinnest of its siblings.
What has no beginning, end, or middle?
I am the kind of a tree that is carried in your hand. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.