Problem: The Battle of Rain, or Lech, on April 15th 1632 in which the Swedes under Gustavus Adolphus beat the forces of the Holy Roman Empire was part of which war?
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A: thirty years war

Problem: Which sea area covers the north coast of Ireland?
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A: malin

Problem: Which Liberal Democrat MP succeeded Chris Huhne as Secretary of State for Energy and Climate Change in 2012?
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A: ed davey

Problem: In semaphore what letter is represented by one arm held vertically upwards?
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A:
d