Here are the answers to this week's quiz...
1. A sense of smell – they all suffer from anosmia, following head traumas.
2. Pete Seeger.
3. He won a stage of the Tour de France.
5. The British Armed Forces' operation in Northern Ireland.
6. Pet Shop Boys.
7. The rise of African nationalism.
8. "Gather ye rosebuds while ye may".
9. Personal cleanliness.
10. Unfinished novels by Musil, Kafka and Austen.