Pronounced as one letter, and written with three, two letters there are, and two only in me. I'm double, I'm single, I'm black, blue, and gray, I'm read from both ends, the same either way.
EYE
WHAT IS THE CAPITAL OF AUSTRIA?
VIENNA
BAHOLASH(2)
ASSESMENT, EVALUATION
I am the part of your body that helps you breathe. What am I?