Answer:
I am so simple that I can only point. Yet I guide men all over the world.
What is put on a table, cut, but never eaten?
What always goes to bed with his shoes on?
What is round as a dishpan, deep as a tub, and still the oceans couldn't fill it up?
Walk on the living, they don't even mumble. Walk on the dead, they mutter and grumble.
I can only be played on a windy day