Problem: In which year did Louis Bleriot make the first powered flight across the English Channel?
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A: 1909

Problem: In computing, what is meant by the initials SQL?
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A: structured query language

Problem: Which 2007 Rihanna song topped the charts in fifteen countries?
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A: umbrella

Problem: Which rock band formed in 1994, is named after unexplained lights seen by WW2 pilots?
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A:
foo fighters