Problem: Windows 8:

The build was released for download later in the day in standard 32-bit and 64-bit versions, plus a special 64-bit version which included SDKs and developer tools (Visual Studio Express and Expression Blend) for developing Metro-style apps. The Windows Store was announced during the presentation, but was not available in this build. According to Microsoft, there were about 535,000 downloads of the developer preview within the first 12 hours of its release. Originally set to expire on March 11, 2012, in February 2012 the Developer Preview's expiry date was changed to January 15, 2013.

When did the developer preview expire?
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A: January 15, 2013

Problem: Citing a 2008 study, the U.S. Center for Disease Control estimated in 2015 that 4.5 million people in the USA are bitten by dogs each year. A 2015 study estimated that 1.8% of the U.S. population is bitten each year. In the 1980s and 1990s the US averaged 17 fatalities per year, while in the 2000s this has increased to 26. 77% of dog bites are from the pet of family or friends, and 50% of attacks occur on the property of the dog's legal owner.
According to a 2008 CDC report, how many are bitten in the United States annually?
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Answer: 4.5 million

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Longwood Medical and Academic Area, adjacent to the Fenway district, is home to a large number of medical and research facilities, including Beth Israel Deaconess Medical Center, Brigham and Women's Hospital, Children's Hospital Boston, Dana-Farber Cancer Institute, Harvard Medical School, Joslin Diabetes Center, and the Massachusetts College of Pharmacy and Health Sciences. Prominent medical facilities, including Massachusetts General Hospital, Massachusetts Eye and Ear Infirmary and Spaulding Rehabilitation Hospital are located in the Beacon Hill area. St. Elizabeth's Medical Center is in Brighton Center of the city's Brighton neighborhood. New England Baptist Hospital is in Mission Hill. The city has Veterans Affairs medical centers in the Jamaica Plain and West Roxbury neighborhoods. The Boston Public Health Commission, an agency of the Massachusetts government, oversees health concerns for city residents. Boston EMS provides pre-hospital emergency medical services to residents and visitors.
What agency oversees health concerns for city residents?
A: The Boston Public Health Commission

Context and question: Albertus Magnus championed the idea, drawn from Dionysus, that positive knowledge of God is possible, but obscure. Thus, it is easier to state what God is not, than to state what God is: "... we affirm things of God only relatively, that is, casually, whereas we deny things of God absolutely, that is, with reference to what He is in Himself. And there is no contradiction between a relative affirmation and an absolute negation. It is not contradictory to say that someone is white-toothed and not white".
How do we deny things of God?
Answer: absolutely

Question: In early 12th-century al-Andalus, the Arabian philosopher, Ibn Tufail (Abubacer), wrote discussions on materialism in his philosophical novel, Hayy ibn Yaqdhan (Philosophus Autodidactus), while vaguely foreshadowing the idea of a historical materialism.
Is there an answer to this question: What book by Ibn Tufail did not discuss materialism?

Answer: unanswerable

QUES: Capacitors may catastrophically fail when subjected to voltages or currents beyond their rating, or as they reach their normal end of life. Dielectric or metal interconnection failures may create arcing that vaporizes the dielectric fluid, resulting in case bulging, rupture, or even an explosion. Capacitors used in RF or sustained high-current applications can overheat, especially in the center of the capacitor rolls. Capacitors used within high-energy capacitor banks can violently explode when a short in one capacitor causes sudden dumping of energy stored in the rest of the bank into the failing unit. High voltage vacuum capacitors can generate soft X-rays even during normal operation. Proper containment, fusing, and preventive maintenance can help to minimize these hazards.

What can happen to capacitors used in low energy capacitor banks?
What is the answer?
ANS:
unanswerable