Shirley Bassey

From Frikipedia

Stock answer when the real answer to a pub quiz question is eluding the bloke on your team who keeps cheating by googling stuff on his mobile phone.

Has as much chance of being right as anything else, statistically. Apart from the correct answer, of course.

Scientists are currently working on a Grand Theory of Everything in an attempt to unite Shirley Bassey and the Goldbach Factor in a controversial process that could achieve pub quiz nirvana, but would ensure that every competitor from then on scores maximum marks, and the paltry prize fund spilt between everyone.