When some random homeless guy came up to me and asked me, "How many skaters does it take to screw in a lightbulb?" I thought it was the stupidest question ever. However, once I was told the punch line I was pretty impressed and gave the dude a dollar.
Homeless guy, "Hey, I've got a joke for you."
Me, "What? Umm, ok?"
Homeless guy, "How many skaters does it take to screw in a lightbulb?"
Me, "I don't know."
Homeless guy, "Three. One to screw the lightbulb in, one to film it, and one to say, 'Dude, that was awesome.'"