Very hard riddle

It has 4 wings but cannot fly
it cannot laugh or cannot cry
it makes little sound
what is it
when you've figured that out try this one

Answer Windmill

A man lives on his own no visits him one day he turns of all of his lights and leave later on 6 men get wet how is it possible

Second Answer
He lives in a light house and the men were on a boat and have no sign of were they are going and crash