Pub Quiz

Last night, entirely by mistake, we found ourselves in a pub where they were having a quiz.

"Who replaced Glen Matlock as the Sex Pistols bassist?".
Sid Vicious.

"Who, in 1982, described Mount Everest as being littered with rubbish from base to tip?"
No idea. Sherpa Tenzing?

Then, a very strange, opinionated question.
"Which musical genius sprung to prominence with Riverdance?"

An easy one surely. All around us people frantically whispering and scribbling down the wrong answer. To a question which literally has no answer.