Answer:
I am a celebrity fish.
I am black when you buy me, red when you use me. When I turn white, you know it's time to throw me away. What am I?
I go inside boots and outside shoes. What am I?
What has roots that nobody sees and is taller than trees. Up up up it goes and yet never grows?
If there is a bee in my hand, what is in my eye?
No matter how little or how much you use me, you change me every month.