music: 50's Chart Toppers: Name The Artist: Chop Chop Boom?

Questions

Which British monarch was known as The Sailor King?

Who wrote - Man was born free and everywhere he is in chains?

In which European art galleries are the 2 versions of Leonardo Da Vincis Virgin of the Rocks?

In a suit of armour which part of the body is protected by a greave?

Name given to a positive electrode?