Answer:
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?
So simple, that I can only point. Yet I guide men all over the world.
You turn me over after you have travelled far.
I am in the middle of water but am not an island.
I run smoother than any rhyme I love to fall but cannot climb.
The answer I give is yes, but what I mean is no. What was the question?