Problem: Whose portrait preceded those of both Charles Darwin and Charles Dickens on the back of a British 10 note?
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A: florence nightingale

Problem: Who wrote symphonies nicknamed 'Paris' and 'Prague'?
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A: mozart

Problem: What name was given to the system of connecting computer devices in a series so that the first device is connected to the second, the second to the third etc
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A: daisy chaining

Problem: Who was the first man in space?
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A:
yuri gagarin