(1) How much does it cost to post a standard letter in Australia?
(2) What name is given to someone who studies and collects postage stamps?
(3) The portraits of how many monarchs have appeared on British postage stamps?
(4) What was the world’s first adhesive postage stamp called?
Answer: Penny Black (1840).
(5) A character with the surname Stamper appeared (and was murdered) in both the British and the US versions of what political drama series?
Answer: House of Cards.