What famous tennis player became Novak Djokovic's coach in 2013?

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What modern country includes the ancient region of Mesopotamia?

Which state is home to the Fort Apache Indian Reservation?

What did Pieter van Musschenbroek create at a namesake Dutch university in 1746 by lining a glass jar with silver foil?

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What actor played the role of Hans Gruber in the original "Die Hard" movie?

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What movie earned Steven Spielberg his first Oscar?

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Who did Perseus turn into stone with Medusa's head?