Answer:
No matter how little or how much you use me, you change me every month. What am I?
What sphinxes employ and players enjoy.
What gets broken if itβs not kept?
The celebrities of high school were part of this crowd.
Old people and owls are said to be this.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.