Answer:
Before Mt. Everest was discovered what was the highest mountain in the world?
I row quickly with four oars but never comes out from under my own roof.
Flat as a leaf round as a ring. I have two eyes but can't see a thing.
Mr. Red lives in the red house. Mr. Blue lives in the blue house. Mrs. Pink lives in the pink house. Who lives in the white house?
I am in the past, never in the future. I don't exist, but have existed. I saw what you saw, and this is what I will ever see. What am I?
I flow from the Homerβs mouth when he sees doughnuts.