A 21-hour production of which Goethe work was a highlight of Expo 2000 in Hanover, Germany?

A 2011 phone-hacking scandal ended the 168-year run of which British tabloid? A 2011 stamp marked the 50th anniversary of whose flight aboard the Mercury capsule Freedom 7? In 2011, about 45,000 workers struck which telecom company in one of the largest U.S. strikes in years? Which 20th-century U.S. president was nicknamed "Poppy"? A 22-year-old Belgian soldier was the model for which French sculptor's 1877 work "The Age of Bronze"? A 24-carat gemstone weighs 4.8 of which metric units? A 25-year search with telescopes ended with the discovery of which object in 1930? A 25th anniversary, such as Queen Elizabeth II's in 1977, is called a silver what?