Misc: who was a member of 'crosby, stills and nash' and 'the hollies'?

Questions

Who was The Man of Destiny in George Bernard Shaw's play of that name?

Which group had a British number one hit in the 1970s with I Don't Like Mondays?

In what year was the Battle of Balaclava?

Which country's national flag consists of a white crescent and star, offset left of centre, on a red field?

Which city, capital of the Assyrian Empire, was destroyed by fire in 612 B.C.?