Answer:
You heard me before, yet you hear me again, then I die. Until you call me again.
If eleven plus two equals one, what is nine plus five equal to?
I have four legs but no tail. Usually I am heard only at night.
Though easy to spot, when allowed to plume, It is hard to see, when held in a room.
My first is nothing but a nameอพ my second is more smallอพ my whole is of so little fame it has no name at all.
What did the piece of wood say when he saw the screwdriver and screws approaching?