Answer:
What is black when you buy it, red when you use it, and gray when you throw it away?
When you buy me I am costly, but the only use I have is hanging only. What am I?
I am filled with garb the price is free. Just return what you don't need.
I am what brings things together. Without me everything you see would be a total mass or debris everywhere. What am I?
My days are numbered. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?