1992: From which conflict did we get the euphemism 'ethnic cleansing'?

Questions

In what year was the first commercial opera house opened?

Who had hit records with 'You Love Us' and 'Kevin Carter'?

What is the English title of the German opera, 'Die lustigen Weiber von Windsor'?

In which German city was the composer Pachelbel born?

Who sang about cars and girls in 1988?