Answer:
You buy me to eat, but never eat me. What am I?
I can generate fear and some say I come out of your ears. I am as quiet as a mouse but not welcomed in the house.
Where do fish keep their money?
Lovely and round, I shine with pale light, Grown in the darkness, a ladyβs delight.
I'm not a bird, but I can fly through the sky. I'm not a river, but I'm full of water. What am I?
No matter how little or how much you use me, you change me every month.