Answer:
The more holes you cover the lower I go.
What is black when you buy it red when you use it and gray when you throw it away?
Drop me and the world will shatter. You can always find me where you empty your bladder.
I walk on 4 legs in the morning 2 legs at noon and 3 legs at night.
What kind of table can you eat?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.