Problem: Who became the King of Spain on 22 November 1975, two days after the death of Francisco Franco?
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A: king juan carlos i

Problem: What does a numismatist study or collect?
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A: coins

Problem: Now the site of an airport, which former English racecourse staged the Grand National from 1916 to 1918 after Aintree was taken into use by the War Office ?
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A: gatwick racecourse

Problem: Sn is the chemical symbol for which metallic element
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A:
tin