If you're like me, you tend to suck at comebacks (at least coming up with them fast enough for them to be useful), which makes BuzzFeed's list of 32 wittiest comebacks even better.
Many of the witicisms attributed to Churchill came from Churchill himself. In other words he told them in anecdotes about himself. There is no evidence that he actually said them other than his own testimony. It probably took him hours to think of them.
The woman responds, "My goodness, Mr. Churchill. I suppose I would."
Churchill replies, "Would you sleep with me for five pounds?"
She answers, "Mr. Churchill, what kind of woman do you think I am?"
Churchill answers, "Madam, we've already established that. Now we are haggling about the price."