Problem: What was the name of the submarine in the novel ' 20,000 Leagues Under the Sea ' by Jules Verne ?
Answer: nautilus

Problem: Who composed the 1912 tone poem 'On Hearing the First Cuckoo of Sping'?
Answer: frederick delius

Problem: What was the first name of Captain Mainwaring in Dad's Army.
Answer: george

Problem: The Swiss Re Tower in London is commonly known by what name?
Answer:
gherkin