Problem: Brigham Young University:

Brigham Young University's origin can be traced back to 1862 when a man named Warren Dusenberry started a Provo school in a prominent adobe building called Cluff Hall, which was located in the northeast corner of 200 East and 200 North. On October 16, 1875, Brigham Young, then president of the LDS Church, personally purchased the Lewis Building after previously hinting that a school would be built in Draper, Utah in 1867. Hence, October 16, 1875 is commonly held as BYU's founding date. Said Young about his vision: "I hope to see an Academy established in Provo... at which the children of the Latter-day Saints can receive a good education unmixed with the pernicious atheistic influences that are found in so many of the higher schools of the country."

What is October 16, 1857 known as?
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A: unanswerable

Problem: The skeleton consists of very lightweight bones. They have large air-filled cavities (called pneumatic cavities) which connect with the respiratory system. The skull bones in adults are fused and do not show cranial sutures. The orbits are large and separated by a bony septum. The spine has cervical, thoracic, lumbar and caudal regions with the number of cervical (neck) vertebrae highly variable and especially flexible, but movement is reduced in the anterior thoracic vertebrae and absent in the later vertebrae. The last few are fused with the pelvis to form the synsacrum. The ribs are flattened and the sternum is keeled for the attachment of flight muscles except in the flightless bird orders. The forelimbs are modified into wings.
What are pneumatic cavities?
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Answer: large air-filled cavities

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
One of the most popular shows on CBC Television is the weekly Saturday night broadcast of NHL hockey games, Hockey Night in Canada. It has been televised by the network since 1952. During the NHL lockout and subsequent cancellation of the 2004-2005 hockey season, CBC instead aired various recent and classic movies, branded as Movie Night in Canada, on Saturday nights. Many cultural groups criticized this and suggested the CBC air games from minor hockey leagues; the CBC responded that most such broadcast rights were already held by other groups, but it did base each Movie Night broadcast from a different Canadian hockey venue. Other than hockey, CBC Sports properties include Toronto Raptors basketball, Toronto FC Soccer, and various other amateur and professional events.
When movie Night in Canada was not successful, what other sports team rights did the CBC acquire?
A: unanswerable

Context and question: During the revival, in 1809 linguist and historian Josef Dobrovsky released a German-language grammar of Old Czech entitled Ausfuhrliches Lehrgebaude der bohmischen Sprache (Comprehensive Doctrine of the Bohemian Language). Dobrovsky had intended his book to be descriptive, and did not think Czech had a realistic chance of returning as a major language. However, Josef Jungmann and other revivalists used Dobrovsky's book to advocate for a Czech linguistic revival. Changes during this time included spelling reform (notably, i in place of the former j and j in place of g), the use of t (rather than ti) to end infinitive verbs and the non-capitalization of nouns (which had been a late borrowing from German). These changes differentiated Czech from Slovak. Modern scholars disagree about whether the conservative revivalists were motivated by nationalism or considered contemporary spoken Czech unsuitable for formal, widespread use.
What year did Joseph Dobrovsky release a German-language grammar of Old Czech?
Answer: 1809

Question: In 1565, the powerful Rinbung princes were overthrown by one of their own ministers, Karma Tseten who styled himself as the Tsangpa, "the one of Tsang", and established his base of power at Shigatse. The second successor of this first Tsang king, Karma Phuntsok Namgyal, took control of the whole of Central Tibet (U-Tsang), reigning from 16111621. Despite this, the leaders of Lhasa still claimed their allegiance to the Phagmodru as well as the Gelug, while the U-Tsang king allied with the Karmapa. Tensions rose between the nationalistic U-Tsang ruler and the Mongols who safeguarded their Mongol Dalai Lama in Lhasa. The fourth Dalai Lama refused to give an audience to the U-Tsang king, which sparked a conflict as the latter began assaulting Gelug monasteries. Chen writes of the speculation over the fourth Dalai Lama's mysterious death and the plot of the U-Tsang king to have him murdered for "cursing" him with illness, although Chen writes that the murder was most likely the result of a feudal power struggle. In 1618, only two years after Yonten Gyatso died, the Gelug and the Karma Kargyu went to war, the Karma Kargyu supported by the secular U-Tsang king. The U-Tsang ruler had a large number of Gelugpa lamas killed, occupied their monasteries at Drepung and Sera, and outlawed any attempts to find another Dalai Lama. In 1621, the U-Tsang king died and was succeeded by his young son Karma Tenkyong, an event which stymied the war effort as the latter accepted the six-year-old Lozang Gyatso as the new Dalai Lama. Despite the new Dalai Lama's diplomatic efforts to maintain friendly relations with the new U-Tsang ruler, Sonam Rapten (15951657), the Dalai Lama's chief steward and treasurer at Drepung, made efforts to overthrow the U-Tsang king, which led to another conflict. In 1633, the Gelugpas and several thousand Mongol adherents defeated the U-Tsang king's troops near Lhasa before a peaceful negotiation was settled. Goldstein writes that in this the "Mongols were again playing a significant role in Tibetan affairs, this time as the military arm of the Dalai Lama."
Is there an answer to this question: When were the Rinbung princes overthrown?

Answer: 1565

Problem: States of Germany:

As the premiers did not come to an agreement on this question, the Parliamentary Council was supposed to address this issue. Its provisions are reflected in Article 29. There was a binding provision for a new delimitation of the federal territory: the Federal Territory must be revised ... (paragraph 1). Moreover, in territories or parts of territories whose affiliation with a Land had changed after 8 May 1945 without a referendum, people were allowed to petition for a revision of the current status within a year after the promulgation of the Basic Law (paragraph 2). If at least one tenth of those entitled to vote in Bundestag elections were in favour of a revision, the federal government had to include the proposal into its legislation. Then a referendum was required in each territory or part of a territory whose affiliation was to be changed (paragraph 3). The proposal should not take effect if within any of the affected territories a majority rejected the change. In this case, the bill had to be introduced again and after passing had to be confirmed by referendum in the Federal Republic as a whole (paragraph 4). The reorganization should be completed within three years after the Basic Law had come into force (paragraph 6).

What fraction of people voted in Bundestag elections?
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A:
unanswerable