The Saturday quiz answers

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1. John Cage's "piano" piece "4.33" – four minutes and 33 seconds of silence.

2. England, Italy and Germany.

3. Bletchley Park, the centre for decoding operations.

4. World Heritage Site status.

5. Adam's.

6. The Kentucky Derby.

7. Jimi Hendrix – as in the Jimi Hendrix Experience.

8. As the creator of the ship in the bottle that is the latest artwork to occupy Trafalgar Square's fourth plinth.

9. Pontiac.

10. Order of the Garter.