Problem: Anti-aircraft warfare:

The US ended World War I with two 3-inch AA guns and improvements were developed throughout the inter-war period. However, in 1924 work started on a new 105 mm static mounting AA gun, but only a few were produced by the mid-1930s because by this time work had started on the 90 mm AA gun, with mobile carriages and static mountings able to engage air, sea and ground targets. The M1 version was approved in 1940. During the 1920s there was some work on a 4.7-inch which lapsed, but revived in 1937, leading to a new gun in 1944.

Only a few of the 105 mm static mounting AA guns were produced because work had started on which other gun?
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A: 90 mm AA gun

Problem: The restoration of power to the patriciate was only temporary. After a period of unrest with repeated violent clashes such as the Zuriputsch of 1839, civil war (the Sonderbundskrieg) broke out in 1847 when some Catholic cantons tried to set up a separate alliance (the Sonderbund). The war lasted for less than a month, causing fewer than 100 casualties, most of which were through friendly fire. Yet however minor the Sonderbundskrieg appears compared with other European riots and wars in the 19th century, it nevertheless had a major impact on both the psychology and the society of the Swiss and of Switzerland.
How big was the impact the Sonderbundskrieg had on the psychology and society of the Swiss and Switzerland?
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Answer: major

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Following the 11 September 2001 attacks, former President of Pakistan Pervez Musharraf sided with the U.S. against the Taliban government in Afghanistan after an ultimatum by then U.S. President George W. Bush. Musharraf agreed to give the U.S. the use of three airbases for Operation Enduring Freedom. United States Secretary of State Colin Powell and other U.S. administration officials met with Musharraf. On 19 September 2001, Musharraf addressed the people of Pakistan and stated that, while he opposed military tactics against the Taliban, Pakistan risked being endangered by an alliance of India and the U.S. if it did not cooperate. In 2006, Musharraf testified that this stance was pressured by threats from the U.S., and revealed in his memoirs that he had "war-gamed" the United States as an adversary and decided that it would end in a loss for Pakistan.
Who was the current president of Afghanistan?
A: unanswerable

Context and question: The presence of the University of California, San Diego and other research institutions has helped to fuel biotechnology growth. In 2013, San Diego has the second-largest biotech cluster in the United States, below the Boston area and above the San Francisco Bay Area. There are more than 400 biotechnology companies in the area. In particular, the La Jolla and nearby Sorrento Valley areas are home to offices and research facilities for numerous biotechnology companies. Major biotechnology companies like Illumina and Neurocrine Biosciences are headquartered in San Diego, while many biotech and pharmaceutical companies have offices or research facilities in San Diego. San Diego is also home to more than 140 contract research organizations (CROs) that provide a variety of contract services for pharmaceutical and biotechnology companies.
How many contract research organizations are in San Francisco?
Answer: unanswerable

Question: In other events of the nineteenth century, The Times opposed the repeal of the Corn Laws until the number of demonstrations convinced the editorial board otherwise, and only reluctantly supported aid to victims of the Irish Potato Famine. It enthusiastically supported the Great Reform Bill of 1832, which reduced corruption and increased the electorate from 400,000 people to 800,000 people (still a small minority of the population). During the American Civil War, The Times represented the view of the wealthy classes, favouring the secessionists, but it was not a supporter of slavery.
Is there an answer to this question: What major event did The Times reluctantly support in the nineteenth century despite being initially opposed?

Answer: Irish Potato Famine

Question: The New York City Health and Hospitals Corporation (HHC) operates the public hospitals and clinics in New York City. A public benefit corporation with $6.7 billion in annual revenues, HHC is the largest municipal healthcare system in the United States serving 1.4 million patients, including more than 475,000 uninsured city residents. HHC was created in 1969 by the New York State Legislature as a public benefit corporation (Chapter 1016 of the Laws 1969). It is similar to a municipal agency but has a Board of Directors. HHC operates 11 acute care hospitals, five nursing homes, six diagnostic and treatment centers, and more than 70 community-based primary care sites, serving primarily the poor and working class. HHC's MetroPlus Health Plan is one of the New York area's largest providers of government-sponsored health insurance and is the plan of choice for nearly half million New Yorkers.
Is there an answer to this question: How many uninsured New Yorkers take advantage of HHC?

Answer:
475,000