Problem: Grover Cleveland was the only US president to serve non-consecutive terms. Which president, the 23rd, served in between his two terms?
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A: benjamin harrison

Problem: There have been 12 prime ministers during the queen's reign. How many of them were Conservative?
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A: 8

Problem: Oscar Niemeyer was the chief architect of which capital city from 1956 until 1960?
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A: brasilia

Problem: Which American President organised the Louisiana Purchase in 1803?
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A:
thomas jefferson