Quiz of the week

1) The music of which pop group featured heavily in the soundtrack to the 1977 film Saturday Night Fever? 2) Megatherium is an extinct, giant relative of which slow-moving, Central and South American mammal? 3) In Greek mythology, who is credited with slaying the Minotaur? 4) Who is fourth in the line of succession of the British monarchy? 5) What is the predominant spice used in a Hungarian goulash?