Answer:
What goes with a car, comes with a car, is no use to a car but a car cannot move without it?
It cannot be seen, it weighs nothing, but when put into a barrel, it makes it lighter.
Long and slinky like a trout, never sings till it's guts come out.
My first is a body of water. My second is me. My third came before. My fourth before all three. My fifth sounds like my first. My sixth is in a lake. Put all six together to make an animal that will keep you awake.
What has three feet but no arms or legs?
What did the piece of wood say when he saw the screwdriver and screws approaching?