Q: How many men
does it take to open a beer?

So God calls to
Adam and says, "Adam, I have some good news and some bad news. What do you want
to hear first?"
Adam replies, "The good news."
God answers, "Well, the good news is I gave you a penis and a brain."
Then Adam says, "OK, so what's the bad news?"
And God says, "I only gave you enough blood to operate one at time."