Problem: The 1956 inaugural Eurovision Song Contest featured Belgium, France, Germany, Luxembourg, Netherlands, Italy and which other country?
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A: switzerland

Problem: What force keeps the moon in orbit around Earth?
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A: gravity

Problem: In which Dickens novel does 'Eugene Wrayburn' marry 'Lizzy Hexam'?
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A: our mutual friend

Problem: Which European capital city is served by Henri Coanda Airport ?
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A:
bucharest