tag lines: 1991: he said "i'll be back"... and he meant it!?

Questions

Which country, the most populous in Africa, was suspended from the Commonwealth in 1995 for anti-democratic behaviour?

Whose dying words were reputedly, "So little done, so much to do."?

Who bought the American Chrysler car company in 1998?

Which King of England was the son of Edward the Black Prince?

What is the name of the stretch of water separating Mexico and Cuba?