Answer:
What is often on the ground getting stepped on by others, but you donโt have to wash it because it never get dirty, in fact you couldnโt wash it even if you tried?
What can travel around the world while staying in a corner?
Passed from father to son and shared between brothers, its importance is unquestioned though it is used more by others.
What dentists battle on a daily basis
Before Mount Everest was discovered, what was the highest mountain on Earth?
Break me and I am better immediately set and harder to be broken again.