Problem: What colour would a magnesium flare burn with
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A: white

Problem: The 2013 book An Officer and a Spy by Robert Harris is a fictional account of real life events. Whose life is it based on?
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A: alfred dreyfus

Problem: Who was the first President of the French Fifth Republic?
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A: charles de gaulle

Problem: Who played 'Marty McFly in the film 'Back to the Future'?
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A:
michael j fox