Answer:
I pass before the sun, yet make no shadow. I'm all around you, but you cannot see me. What am I?
I have a tongue, but cannot speak. I have a bed but cannot sleep. I have four legs but cannot walk. Yet I move as you do. What am I?
I am in the middle of water but am not an island.
I am a person who pretends to be someone else
I cause involuntary movements in your vehicle
I will disappear every time you say my name.