Answer:
I was was before was was was.
What three letters change a boy into a man?
I am a house with two occupants sometimes one rarely three. Break the walls eat the boarders then throw away me.
I can wave my hands at you but I never say goodbye. You are always cool when with me even more so when I am high!
The more you work, the more I'll eat.You keep me full, I'll keep you neat. What am I?
Give it food and it will live, give it water and it will die.