Songs: Real Love - _____Watley?

Questions

In nautical terms, what name is given to the upper edge of a ship's side?

What were the lone three fighter planes which defended Malta in World War II nicknamed?

In Greek mythology, what were Medusa, Stheno and Euryale collectively known as?

Which East African leader gave himself the title of 'Conqueror of the British Empire'?

For what principal purpose are UHF radio waves used?