The problem: Answer a question about this article:
According to Sun Jiadong, the chief designer of the navigation system, "Many organizations have been using our system for a while, and they like it very much."
Who is the chief designer of the BeiDou navigation system?
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The answer: Sun Jiadong

The problem: Answer a question about this article:
Schwarzenegger is a dual Austrian/United States citizen. He holds Austrian citizenship by birth and has held U.S. citizenship since becoming naturalized in 1983. Being Austrian and thus European, he was able to win the 2007 European Voice campaigner of the year award for taking action against climate change with the California Global Warming Solutions Act of 2006 and plans to introduce an emissions trading scheme with other US states and possibly with the EU.
What year did Schwarzenegger become a naturalized citizen of the United States?
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The answer: 1983

The problem: Answer a question about this article:
Queen began their 1980s career with The Game. It featured the singles "Crazy Little Thing Called Love" and "Another One Bites the Dust", both of which reached number one in the US. After attending a Queen concert in Los Angeles, Michael Jackson suggested to Mercury backstage that "Another One Bites the Dust" be released as a single, and in October 1980 it spent three weeks at number one. The album topped the Billboard 200 for five weeks, and sold over four million copies in the US. It was also the first appearance of a synthesiser on a Queen album. Heretofore, their albums featured a distinctive "No Synthesisers!" sleeve note. The note is widely assumed to reflect an anti-synth, pro-"hard"-rock stance by the band, but was later revealed by producer Roy Thomas Baker to be an attempt to clarify that those albums' multi-layered solos were created with guitars, not synths, as record company executives kept assuming at the time. In September 1980, Queen performed three sold-out shows at Madison Square Garden. In 1980, Queen also released the soundtrack they had recorded for Flash Gordon. At the 1981 American Music Awards in January, "Another One Bites the Dust" won the award for Favorite Pop/Rock Single, and Queen were nominated for Favorite Pop/Rock Band, Duo, or Group.
Queen recorded the soundtrack to what show?
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The answer: Flash Gordon

The problem: Answer a question about this article:
Eisenhower was the last president born in the 19th century, and at age 62, was the oldest man elected President since James Buchanan in 1856 (President Truman stood at 64 in 1948 as the incumbent president at the time of his election four years earlier). Eisenhower was the only general to serve as President in the 20th century and the most recent President to have never held elected office prior to the Presidency (The other Presidents who did not have prior elected office were Zachary Taylor, Ulysses S. Grant, William Howard Taft and Herbert Hoover).
In what century was Eisenhower born?
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The answer:
19th