Problem: Korean War:

The on-again, off-again armistice negotiations continued for two years, first at Kaesong, on the border between North and South Korea, and then at the neighbouring village of Panmunjom. A major, problematic negotiation point was prisoner of war (POW) repatriation. The PVA, KPA, and UN Command could not agree on a system of repatriation because many PVA and KPA soldiers refused to be repatriated back to the north, which was unacceptable to the Chinese and North Koreans. In the final armistice agreement, signed on 27 July 1953, a Neutral Nations Repatriation Commission, under the chairman Indian General K. S. Thimayya, was set up to handle the matter.

What was deemed unacceptable to North Koreans and the Chinese during POW negotiations?
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A: many PVA and KPA soldiers refused to be repatriated back to the north


Problem: A cappella:

Instruments have divided Christendom since their introduction into worship. They were considered a Catholic innovation, not widely practiced until the 18th century, and were opposed vigorously in worship by a number of Protestant Reformers, including Martin Luther (1483–1546), Ulrich Zwingli, John Calvin (1509–1564) and John Wesley (1703–1791). Alexander Campbell referred to the use of an instrument in worship as "a cow bell in a concert". In Sir Walter Scott's The Heart of Midlothian, the heroine, Jeanie Deans, a Scottish Presbyterian, writes to her father about the church situation she has found in England (bold added):

What was the name of the book in which Jeanie Deans is the protagonist?
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A: The Heart of Midlothian


Problem: Separation of powers under the United States Constitution:

The Constitution does not explicitly indicate the pre-eminence of any particular branch of government. However, James Madison wrote in Federalist 51, regarding the ability of each branch to defend itself from actions by the others, that "it is not possible to give to each department an equal power of self-defense. In republican government, the legislative authority necessarily predominates."

Who wrote that it was possible to give equal power of self defense to each department?
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A: unanswerable


Problem: Portugal:

On 6 April 2011, after his proposed "Plan for Stability and Growth IV" (PEC IV) was rejected by the Parliament, Prime Minister José Sócrates announced on national television that the country would request financial assistance from the IMF and the European Financial Stability Facility, as Greece and the Republic of Ireland had done previously. It was the third time that the Portuguese government had requested external financial aid from the IMF—the first occasion occurred in the late 1970s following the Carnation's Revolution. In October 2011, Moody's Investor Services downgraded nine Portuguese banks due to financial weakness.

What provoked the first request from Portugal for financial support?
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A:
Carnation's Revolution