Answer:
Can not be bought, Can not be sold, Even if it's made of gold. What is it?
I make billions of dollars selling windows. Who am I?
I may be made of metal bone or wood and have many teeth. My bite hurts no one and the ladies love me.
I help engines spin and pants stay up. What am I?
Why are there no living cats on Mars?
I flow from the Homerβs mouth when he sees doughnuts.