Answer:
I am a ship that can be made to ride the greatest waves. I am not built by objects but built by minds.
I go around in circles, but always straight ahead. Never complain, no matter where I am led. What am I?
Iron roof, glass walls, I burn and burn but never fall. What am I?
Digital white-out.
u always follow me but I am rarely seen
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.