Answer:
I am round as an apple, deep as a cup. All the King's horses can't pull me up. What am I?
Blade to blade I always win My foe laid low and even. Yard by yard through thick and thin I'm busiest in season.
I am lighter than air but a hundred people cannot lift me. Careful! I am fragile!
I am the state when a person is holding a person inside
A necessity to some, a treasure to many, I'm best enjoyed among pleasant company. Some like me hot, some like me cold. Some prefer mild, some like me bold. What am I?
No matter how little or how much you use me, you change me every month.