Answer:
I am in the middle of water but am not an island.
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
I am the only thing that place today before yesterday. (one word)
I sit in a corner while traveling around the world. What am I?
Itβs red, blue, violet and green. No one can reach it, not even the queen. What is it?
The answer I give is yes, but what I mean is no. What was the question?