Misc: What is the world's oldest song?

Questions

Which musical was based on the play The Matchmaker?

What type of singing does Pavarotti use?

Which single didn't get banned by the BBC despite the line, "Candy never lost her head even when she was giving head"?

Which new-wave band rocked the Casbah?

What country controls access to the North Sea from the rivers Schelde, Meuse & Rhine?