What am I?

I cover what's real; hide what is true, but sometimes bring out the courage in you. What am I?

related riddles

I'm under your face, I'm outside your mind; A biological case, Pressure brings pain sometimes. What am I?

With three eyes and a black as night, I frequently knock down ten men with a single strike! What am I?

I cause involuntary movements in your vehicle. What am I?