This was judged the world's funniest joke
by officials at laughlab.co.uk

  A couple of New Jersey hunters are out in the woods when one falls to the ground. He doesn't seem to be breathing, his eyes rolled back in his head. The other guy whips out his cell phone and calls 911. He gasps to the operator,"My friend is dead! What can I do?" The operator, in a calm soothing voice says:"Just take it easy. I can help. First, let's make sure he's dead."
  There is a silence, then a shot is heard. The guy's voice comes back on
the line. He says:"OK, now what?"