useless trivia: What Word Means: An Australian Bush Call?

Questions

In which year did Fidel Castro overthrow General Batista in Cuba?

In 1648, the Treaty of Westphalia ended which war?

Jack Merridew is a character in which novel, first published in 1954?

In which U.K. town or city is Robert Gordon University based?

Which politician famously said 'What is our task?