according to this story, this is the funniest joke in the world:
Two hunters are out in the woods when one of them collapses. He doesn't seem to be breathing and his eyes are glazed. The other man pulls out his phone and calls emergency services.

He gasps to the operator: "My friend is dead! What can I do?" The operator in a calm, soothing voice replies: "Take it easy. I can help. First, let's make sure he's dead."

There is a silence, then a shot is heard.

Back on the phone, the hunter says, "OK, now what?"