useless trivia: What Word Means: An American Indian Tribe?

Questions

What very rude nickname was given to suede shoes with rubber soles in the 1950s?

The ore pitchblende is the major source of which element?

What is the original meaning of the word Shambles?

The polar explorer Sir Ranulph Fiennes has a triple barrelled surname. Give either of the other parts of his surname.?

In which country do the Khmer people live?