Problem: Detroit:

Oakland County in Metro Detroit, once rated amongst the wealthiest US counties per household, is no longer shown in the top 25 listing of Forbes magazine. But internal county statistical methods based on measuring per capita income for counties with more than one million residents show that Oakland is still within the top 12, slipping from the 4th-most affluent such county in the U.S. in 2004 to 11th-most affluent in 2009. Detroit dominates Wayne County, which has an average household income of about $38,000, compared to Oakland County's $62,000.

What is Wayne Counties average income?
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A: $38,000

Problem: A variety of games for the FDS were released by Nintendo (including some like Super Mario Bros. which had already been released on cartridge) and third party companies such as Konami and Taito. A few unlicensed titles were made as well. However, its limitations became quickly apparent as larger ROM chips were introduced, allowing cartridges with greater than 128k of space. More advanced memory management chips (MMC) soon appeared and the FDS quickly became obsolete. Nintendo also charged developers considerable amounts of money to produce FDS games, and many refused to develop for it, instead continuing to make cartridge titles. Many FDS disks have no dust covers (except in some unlicensed and bootleg variants) and are easily prone to getting dirt on the media. In addition, the drive use a belt which breaks frequently and requires invasive replacement. After only two years, the FDS was discontinued, although vending booths remained in place until 1993 and Nintendo continued to service drives, and to rewrite and offer replacement disks until 2003.
How long did Nintendo service drives and offer replacement disks?
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Answer: 2003

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Tehran is the country's capital and largest city, as well as its leading cultural and economic center. Iran is a major regional and middle power, exerting considerable influence in international energy security and the world economy through its large reserves of fossil fuels, which include the largest natural gas supply in the world and the fourth-largest proven oil reserves. Iran's rich cultural legacy is reflected in part by its 19 UNESCO World Heritage Sites, the fourth-largest number in Asia and 12th-largest in the world.
How does Iran effect the world economy and international energy markets?
A: through its large reserves of fossil fuels

Context and question: The city's primary commercial airport is the San Diego International Airport (SAN), also known as Lindbergh Field. It is the busiest single-runway airport in the United States. It served over 17 million passengers in 2005, and is dealing with an increasingly larger number every year. It is located on San Diego Bay three miles (4.8 km) from downtown. San Diego International Airport maintains scheduled flights to the rest of the United States including Hawaii, as well as to Mexico, Canada, Japan, and the United Kingdom. It is operated by an independent agency, the San Diego Regional Airport Authority. In addition, the city itself operates two general-aviation airports, Montgomery Field (MYF) and Brown Field (SDM). By 2015, the Tijuana Cross-border Terminal in Otay Mesa will give direct access to Tijuana International Airport, with passengers walking across the U.S.Mexico border on a footbridge to catch their flight on the Mexican side.
What two general aviation airports are operated by the San Francisco Regional Airport Authority?
Answer: unanswerable

Question: In 821/822 CE Tibet and China signed a peace treaty. A bilingual account of this treaty, including details of the borders between the two countries, is inscribed on a stone pillar which stands outside the Jokhang temple in Lhasa. Tibet continued as a Central Asian empire until the mid-9th century, when a civil war over succession led to the collapse of imperial Tibet. The period that followed is known traditionally as the Era of Fragmentation, when political control over Tibet became divided between regional warlords and tribes with no dominant centralized authority.
Is there an answer to this question: When did Tibet and China sign a peace treaty?

Answer: 821/822 CE

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
More generally, corruption erodes the institutional capacity of government if procedures are disregarded, resources are siphoned off, and public offices are bought and sold. Corruption undermines the legitimacy of government and such democratic values as trust and tolerance. Recent evidence suggests that variation in the levels of corruption amongst high-income democracies can vary significantly depending on the level of accountability of decision-makers. Evidence from fragile states also shows that corruption and bribery can adversely impact trust in institutions.
The level of corruption can vary in richer democracies in regards to the what of those officials making decisions?
A:
accountability