Problem: Vacuum:

Medieval thought experiments into the idea of a vacuum considered whether a vacuum was present, if only for an instant, between two flat plates when they were rapidly separated. There was much discussion of whether the air moved in quickly enough as the plates were separated, or, as Walter Burley postulated, whether a 'celestial agent' prevented the vacuum arising. The commonly held view that nature abhorred a vacuum was called horror vacui. Speculation that even God could not create a vacuum if he wanted to was shut down[clarification needed] by the 1277 Paris condemnations of Bishop Etienne Tempier, which required there to be no restrictions on the powers of God, which led to the conclusion that God could create a vacuum if he so wished. Jean Buridan reported in the 14th century that teams of ten horses could not pull open bellows when the port was sealed.

What was a common belief about vacuums and nature?
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A: nature abhorred a vacuum

Problem: Sichuan was China's most populous province before Chongqing became a directly-controlled municipality; it is currently the fourth most populous, after Guangdong, Shandong and Henan. As of 1832, Sichuan was the most populous of the 18 provinces in China, with an estimated population at that time of 21 million. It was the third most populous sub-national entity in the world, after Uttar Pradesh, India and the Russian Soviet Federative Socialist Republic until 1991, when the Soviet Union was dissolved. It is also one of the only six to ever reach 100 million people (Uttar Pradesh, Russian RSFSR, Maharashtra, Sichuan, Bihar and Punjab). It is currently 10th.
What are the three most populist provinces in China?
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Answer: Guangdong, Shandong and Henan

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
While comics are often the work of a single creator, the labour of making them is frequently divided between a number of specialists. There may be separate writers and artists, and artists may specialize in parts of the artwork such as characters or backgrounds, as is common in Japan. Particularly in American superhero comic books, the art may be divided between a penciller, who lays out the artwork in pencil; an inker, who finishes the artwork in ink; a colourist; and a letterer, who adds the captions and speech balloons.
What does an inker do?
A: finishes the artwork in ink

Context and question: The Grey Cup was established in 1909 after being donated by Albert Grey, 4th Earl Grey, The Governor General of Canada as the championship of teams under the CRU for the Rugby Football Championship of Canada. Initially an amateur competition, it eventually became dominated by professional teams in the 1940s and early 1950s. The Ontario Rugby Football Union, the last amateur organization to compete for the trophy, withdrew from competition in 1954. The move ushered in the modern era of Canadian professional football.
Who donated the Grey cup in 2009
Answer: unanswerable

Question: A brewery tap is the nearest outlet for a brewery's beers. This is usually a room or bar in the brewery itself, though the name may be applied to the nearest pub. The term is not applied to a brewpub which brews and sells its beer on the same premises.
Is there an answer to this question: If the brewery tap is not located in the brewery, where is it usually located?

Answer: the nearest pub

Her tenth studio album, Confessions on a Dance Floor, was released in November 2005. Musically the album was structured like a club set composed by a DJ. It was acclaimed by critics, with Keith Caulfield from Billboard commenting that the album was a "welcome return to form for the Queen of Pop." The album won a Grammy Award for Best Electronic/Dance Album. Confessions on a Dance Floor and its lead single, "Hung Up", went on to reach number one in 40 and 41 countries respectively, earning a place in Guinness World Records. The song contained a sample of ABBA's "Gimme! Gimme! Gimme! (A Man After Midnight)", only the second time that ABBA has allowed their work to be used. ABBA songwriter Bjorn Ulvaeus remarked "It is a wonderful track100 per cent solid pop music." "Sorry", the second single, became Madonna's twelfth number-one single in the UK.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When was Confessions on a Dance Floor released?
Ah, so..
November 2005