Answer:
Why is leather armor best for sneaking?
I am the thing that is used to make your weight. What am I?
I am a desire to munch
I am round as an apple, deep as a cup. All the King's horses can't pull me up. What am I?
I have a name that's not mine and no one cares about me in their prime. People cry at my sight and lie by me all day and night.
No matter how little or how much you use me, you change me every month.