Problem: What artist, along with his wife, is best known for wrapping large structures in cloth, such as wrapping the Reichstag, islands in Biscayne Bay, and a bridge in Paris?
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A: christo

Problem: Which theme park in North Yorkshire has the longest roller coaster in the UK, 'The Ultimate'?
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A: lightwater valley

Problem: Brimstone is an old word for which chemical element?
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A: sulphur

Problem: Which country was once called Upper Peru?
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A:
bolivia