Answer:
I am good at concealing what's real and hide what's true. Sometimes I bring out the courage in you!
I sit high glowing and watch the world go by. Without me everything would seem dull and dangerous. What am I?
I direct you from outer space.
I have a mouth on my head and eat everything.
I am pronounced as one letter, written with three. I come in blue, black, brown, or grey. Reverse me and I read the same either way. What am I?
No matter how little or how much you use me, you change me every month.