1. Is Berlin or Vienna home to the world’s oldest zoo?
2. Are Haligonians native to Halle or Halifax?
3. Is it Buenos Aires or Rio de Janeiro which has more psychoanalysts per square kilometre than any other city in the world?
4. Which southern city in France was founded by a colony of Greeks in 580 B.C. – Nice or Marseilles?
5. Was it Sydney or Melbourne which was once capital of Australia?
Answers: Vienna, Halifax, Buenos Aires, Marseilles, Melbourne