The problem: Answer a question about this article:
During the years 1940-1955, the rate of decline in the U.S. death rate accelerated from 2% per year to 8% per year, then returned to the historical rate of 2% per year. The dramatic decline in the immediate post-war years has been attributed to the rapid development of new treatments and vaccines for infectious disease that occurred during these years. Vaccine development continued to accelerate, with the most notable achievement of the period being Jonas Salk's 1954 development of the polio vaccine under the funding of the non-profit National Foundation for Infantile Paralysis. The vaccine process was never patented, but was instead given to pharmaceutical companies to manufacture as a low-cost generic. In 1960 Maurice Hilleman of Merck Sharp & Dohme identified the SV40 virus, which was later shown to cause tumors in many mammalian species. It was later determined that SV40 was present as a contaminant in polio vaccine lots that had been administered to 90% of the children in the United States. The contamination appears to have originated both in the original cell stock and in monkey tissue used for production. In 2004 the United States Cancer Institute announced that it had concluded that SV40 is not associated with cancer in people.
When was the Polio vaccine created?
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The answer: 1954


The problem: Answer a question about this article:
Gaddafi organized demonstrations and distributed posters criticizing the monarchy. In October 1961, he led a demonstration protesting Syria's secession from the United Arab Republic. During this they broke windows of a local hotel accused of serving alcohol. Catching the authorities' attention, they expelled his family from Sabha. Gaddafi moved to Misrata, there attending Misrata Secondary School. Maintaining his interest in Arab nationalist activism, he refused to join any of the banned political parties active in the city – including the Arab Nationalist Movement, the Arab Socialist Ba'ath Party, and the Muslim Brotherhood – claiming he rejected factionalism. He read voraciously on the subjects of Nasser and the French Revolution of 1789, as well as the works of Syrian political theorist Michel Aflaq and biographies of Abraham Lincoln, Sun Yat-sen, and Mustafa Kemal Atatürk.
While he was in secondary school, what sort of activism did Gaddafi support?
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The answer: Arab nationalist activism


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Beyoncé participated in George Clooney and Wyclef Jean's Hope for Haiti Now: A Global Benefit for Earthquake Relief telethon and was named the official face of the limited edition CFDA "Fashion For Haiti" T-shirt, made by Theory which raised a total of $1 million. On March 5, 2010, Beyoncé and her mother Tina opened the Beyoncé Cosmetology Center at the Brooklyn Phoenix House, offering a seven-month cosmetology training course for men and women. In April 2011, Beyoncé joined forces with US First Lady Michelle Obama and the National Association of Broadcasters Education Foundation, to help boost the latter's campaign against child obesity by reworking her single "Get Me Bodied". Following the death of Osama bin Laden, Beyoncé released her cover of the Lee Greenwood song "God Bless the USA", as a charity single to help raise funds for the New York Police and Fire Widows' and Children's Benefit Fund.
Who did Beyonce participate with in the Hope for Haiti Now: A Global Benefit?
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The answer: George Clooney and Wyclef Jean


The problem: Answer a question about this article:
Utrecht Centraal is the main railway station of Utrecht. There are regular intercity services to all major Dutch cities; direct services to Schiphol Airport. Utrecht Centraal is a station on the night service, providing 7 days a week an all night service to (among others) Schiphol Airport, Amsterdam and Rotterdam. International InterCityExpress (ICE) services to Germany (and further) through Arnhem call at Utrecht Centraal. Regular local trains to all areas surrounding Utrecht also depart from Utrecht Centraal; and service several smaller stations: Utrecht Lunetten, Utrecht Vaartsche Rijn, Utrecht Overvecht, Utrecht Leidsche Rijn, Utrecht Terwijde, Utrecht Zuilen and Vleuten. A former station Utrecht Maliebaan closed in 1939 and has since been converted into the Dutch Railway Museum.
where to regular local trains provide service 
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The answer:
local trains to all areas surrounding Utrecht also depart from Utrecht Centraal; and service several smaller stations