Answer:
What breaks when you say its name?
I am found in the sea and on land but I do not walk or swim. I travel by foot but I am toeless. No matter where I go, I am never far from home. What am I?
I am always around you but often forgotten. I am pure and clean most time but occasionally rotten.
You see a boat filled with people. It has not sunk but when you look again you don't see a single person on the boat. Why?
I can be heard in a court or carried with you.
No matter how little or how much you use me, you change me every month.