Problem: Tristan da Cunha:

The Tristan Song Project was a collaboration between St Mary's School and amateur composers in England, led by music teacher Tony Triggs. It began in 2010 and involved St Mary's pupils writing poems and Tony Triggs providing musical settings by himself and his pupils. A desktop publication entitled Rockhopper Penguins and Other Songs (2010) embraced most of the songs completed that year and funded a consignment of guitars to the School. In February 2013 the Tristan Post Office issued a set of four Song Project stamps featuring island musical instruments and lyrics from Song Project songs about Tristan's volcano and wildlife. In 2014 the Project broadened its scope and continues as the International Song Project.

When did the Tristan Song Project narrow its scope?
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A: unanswerable

Problem: Based on the similar shifts underway the nation's economy after 1960, Philadelphia experienced a loss of manufacturing companies and jobs to lower taxed regions of the USA and often overseas. As a result, the economic base of Philadelphia, which had historically been manufacturing, declined significantly. In addition, consolidation in several American industries (retailing, financial services and health care in particular) reduced the number of companies headquartered in Philadelphia. The economic impact of these changes would reduce Philadelphia's tax base and the resources of local government. Philadelphia struggled through a long period of adjustment to these economic changes, coupled with significant demographic change as wealthier residents moved into the nearby suburbs and more immigrants moved into the city. The city in fact approached bankruptcy in the late 1980s. Revitalization began in the 1990s, with gentrification turning around many neighborhoods and reversing its decades-long trend of population loss.
Who replaced the wealthy?
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Answer: immigrants

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Following the breakup of the Russian Empire in the aftermath of World War I for a brief period, from 1918 to 1920, Armenia was an independent republic. In late 1920, the communists came to power following an invasion of Armenia by the Red Army, and in 1922, Armenia became part of the Transcaucasian SFSR of the Soviet Union, later forming the Armenian Soviet Socialist Republic (1936 to September 21, 1991). In 1991, Armenia declared independence from the USSR and established the second Republic of Armenia.
What part of the Red Army did the communists join in 1991?
A: unanswerable

Context and question: In April 1994, the results of a Merck-sponsored study, the Scandinavian Simvastatin Survival Study, were announced. Researchers tested simvastatin, later sold by Merck as Zocor, on 4,444 patients with high cholesterol and heart disease. After five years, the study concluded the patients saw a 35% reduction in their cholesterol, and their chances of dying of a heart attack were reduced by 42%. In 1995, Zocor and Mevacor both made Merck over US$1 billion. Endo was awarded the 2006 Japan Prize, and the Lasker-DeBakey Clinical Medical Research Award in 2008. For his "pioneering research into a new class of molecules" for "lowering cholesterol,"[sentence fragment]
How many patients received Simvastatin?
Answer: unanswerable

Question: On January 17, 1961, Eisenhower gave his final televised Address to the Nation from the Oval Office. In his farewell speech, Eisenhower raised the issue of the Cold War and role of the U.S. armed forces. He described the Cold War: "We face a hostile ideology global in scope, atheistic in character, ruthless in purpose and insidious in method ..." and warned about what he saw as unjustified government spending proposals and continued with a warning that "we must guard against the acquisition of unwarranted influence, whether sought or unsought, by the militaryindustrial complex."
Is there an answer to this question: In his farewell speech, what complex did Eisenhower warn the American people of?

Answer: militaryindustrial

QUES: Before scrimmage, an official places the ball at the spot it was at the stop of clock, but no nearer than 24 yards from the sideline or 1 yard from the goal line. The line parallel to the goal line passing through the ball (line from sideline to sideline for the length of the ball) is referred to as the line of scrimmage. This line is similar to "no-man's land"; players must stay on their respective sides of this line until the play has begun again. For a scrimmage to be valid the team in possession of the football must have seven players, excluding the quarterback, within one yard of the line of scrimmage. The defending team must stay a yard or more back from the line of scrimmage.

How close to the line of scrimmage can defensive players approach before a play is run?
What is the answer?
ANS:
one yard