The Saturday Quiz answers

1. Supreme Court of the United States.

2. The Ballets Russes.

3. Campania.

4. 17th.

5. Musical instruments (particularly guitars).

6. Have all played Willy Wonka.

7. Cartography.

8. Roy Plomley, Sue Lawley, Michael Parkinson, Kirsty Young.

9. Filibuster.

10. Agence France-Presse (AFP).