Problem: Norfolk Island:

As a relatively small and isolated oceanic island, Norfolk has few land birds but a high degree of endemicity among them. Many of the endemic species and subspecies have become extinct as a result of massive clearance of the island's native vegetation of subtropical rainforest for agriculture, hunting and persecution as agricultural pests. The birds have also suffered from the introduction of mammals such as rats, cats, pigs and goats, as well as from introduced competitors such as common blackbirds and crimson rosellas.

What non-native birds caused the bird populations of Norfolk Island to suffer?
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A: common blackbirds and crimson rosellas

Problem: The city's municipal government was dominated by about 1215 merchant families, whose wealth came from overseas trade with continental Europe in particular the export of wool and hides and the import of salt, iron and wine. The medieval population of Cork was about 2,100 people. It suffered a severe blow in 1349 when almost half the townspeople died of plague when the Black Death arrived in the town. In 1491, Cork played a part in the English Wars of the Roses when Perkin Warbeck a pretender to the English throne, landed in the city and tried to recruit support for a plot to overthrow Henry VII of England. The then mayor of Cork and several important citizens went with Warbeck to England but when the rebellion collapsed they were all captured and executed. The title of Mayor of Cork was established by royal charter in 1318, and the title was changed to Lord Mayor in 1900 following the knighthood of the incumbent Mayor by Queen Victoria on her Royal visit to the city.
How many people died in England from the Black Death in 1349?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
As of 2009, Internet via satellite had a steady growth rate of 10% to 15% per year. It was particularly in demand in remote areas that did not have either dialup or wireless online services. The local telecommunications company Dalkom Somalia provided internet over satellite, as well as premium routes for media operators and content providers, and international voice gateway services for global carriers. It also offered inexpensive bandwidth through its internet backbone, whereas bandwidth ordinarily cost customers from $2,500 to $3,000 per month through the major international bandwidth providers. The main clients of these local satellite services were internet cafes, money transfer firms and other companies, as well as international community representatives. In total, there were over 300 local satellite terminals available aross the nation, which were linked to teleports in Europe and Asia. Demand for the satellite services gradually began to fall as broadband wireless access rose. However, it increased in rural areas, as the main client base for the satellite services extended their operations into more remote locales.
Who provided broadband wireless access?
A: unanswerable

Context and question: The city and surrounding area suffered the bulk of the economic damage and largest loss of human life in the aftermath of the September 11, 2001 attacks when 10 of the 19 terrorists associated with Al-Qaeda piloted American Airlines Flight 11 into the North Tower of the World Trade Center and United Airlines Flight 175 into the South Tower of the World Trade Center, and later destroyed them, killing 2,192 civilians, 343 firefighters, and 71 law enforcement officers who were in the towers and in the surrounding area. The rebuilding of the area, has created a new One World Trade Center, and a 9/11 memorial and museum along with other new buildings and infrastructure. The World Trade Center PATH station, which opened on July 19, 1909 as the Hudson Terminal, was also destroyed in the attack. A temporary station was built and opened on November 23, 2003. A permanent station, the World Trade Center Transportation Hub, is currently under construction. The new One World Trade Center is the tallest skyscraper in the Western Hemisphere and the fourth-tallest building in the world by pinnacle height, with its spire reaching a symbolic 1,776 feet (541.3 m) in reference to the year of American independence.
What was the plane named that crashed into the World Trade Center?
Answer: American Airlines Flight 11

Question: The Low German varieties spoken in Germany are often counted among the German dialects. This reflects the modern situation where they are roofed by standard German. This is different from the situation in the Middle Ages when Low German had strong tendencies towards an ausbau language.
Is there an answer to this question: In which country are the Middle Age varieties spoken?

Answer: unanswerable

Question: Additionally, Somalia has several private television networks, including Horn Cable Television and Universal TV. Two such TV stations re-broadcast Al-Jazeera and CNN. Eastern Television Network and SBC TV air from Bosaso, the commercial capital of Puntland. The Puntland and Somaliland regions also each have one government-run TV channel, Puntland TV and Radio and Somaliland National TV, respectively.
Is there an answer to this question: What are two public television networks?

Answer:
unanswerable