Problem: Richmond, Virginia:

The city of Richmond operates 28 elementary schools, nine middle schools, and eight high schools, serving a total student population of 24,000 students. There is one Governor's School in the city the Maggie L. Walker Governor's School for Government and International Studies. In 2008, it was named as one of Newsweek magazine's 18 "public elite" high schools, and in 2012, it was rated #16 of America's best high schools overall. Richmond's public school district also runs one of Virginia's four public charter schools, the Patrick Henry School of Science and Arts, which was founded in 2010.

For whom is the Governor's School in Richmond named?
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A: Maggie L. Walker

Problem: With nitrides containing aluminium, most often AlGaN and AlGaInN, even shorter wavelengths are achievable. Ultraviolet LEDs in a range of wavelengths are becoming available on the market. Near-UV emitters at wavelengths around 375395 nm are already cheap and often encountered, for example, as black light lamp replacements for inspection of anti-counterfeiting UV watermarks in some documents and paper currencies. Shorter-wavelength diodes, while substantially more expensive, are commercially available for wavelengths down to 240 nm. As the photosensitivity of microorganisms approximately matches the absorption spectrum of DNA, with a peak at about 260 nm, UV LED emitting at 250270 nm are to be expected in prospective disinfection and sterilization devices. Recent research has shown that commercially available UVA LEDs (365 nm) are already effective disinfection and sterilization devices. UV-C wavelengths were obtained in laboratories using aluminium nitride (210 nm), boron nitride (215 nm) and diamond (235 nm).
What is the range of wavelengths for cheap UV LEDs?
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Answer: 375395 nm

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
A local pioneer of folk song collection in the first half of the 19th century was Shakespearean scholar James Orchard Halliwell, but it was not until the second folk revival in the 20th century that the full range of song from the county, including industrial folk song, began to gain attention. The county produced one of the major figures of the revival in Ewan MacColl, but also a local champion in Harry Boardman, who from 1965 onwards probably did more than anyone to popularise and record the folk song of the county. Perhaps the most influential folk artists to emerge from the region in the late 20th century were Liverpool folk group The Spinners, and from Manchester folk troubadour Roy Harper and musician, comedian and broadcaster Mike Harding. The region is home to numerous folk clubs, many of them catering to Irish and Scottish folk music. Regular folk festivals include the Fylde Folk Festival at Fleetwood.
In what year did The Spinners release their first folk music album?
A: unanswerable

Context and question: Bilateral treaties are concluded between two states or entities. It is possible, however, for a bilateral treaty to have more than two parties; consider for instance the bilateral treaties between Switzerland and the European Union (EU) following the Swiss rejection of the European Economic Area agreement. Each of these treaties has seventeen parties. These however are still bilateral, not multilateral, treaties. The parties are divided into two groups, the Swiss ("on the one part") and the EU and its member states ("on the other part"). The treaty establishes rights and obligations between the Swiss and the EU and the member states severallyit does not establish any rights and obligations amongst the EU and its member states.[citation needed]
The treaty between Switzerland and the European Union is an example of what kind of treaty?
Answer: bilateral

Question: In Latin America, the show is broadcast and subtitled by Sony Entertainment Television. In southeast Asia, it is broadcast by STAR World every Thursday and Friday nine or ten hours after. In Philippines, it is aired every Thursday and Friday nine or ten hours after its United States telecast; from 2002 to 2007 on ABC 5; 200811 on QTV, then GMA News TV; and since 2012 on ETC. On Philippine television history. In Australia, it is aired a few hours after the U.S. telecast. It was aired on Network Ten from 2002 to 2007 and then again in 2013, from 2008 to 2012 on Fox8, from season 13 onwards it airs on digital channel, Eleven, a sister channel to Network Ten. In the United Kingdom, episodes are aired one day after the U.S. broadcast on digital channel ITV2. As of season 12, the episodes air on 5*. It is also aired in Ireland on TV3 two days after the telecast. In Brazil and Israel, the show airs two days after its original broadcast. In the instances where the airing is delayed, the shows may sometimes be combined into one episode to summarize the results. In Italy, the twelfth season was broadcast by La3.
Is there an answer to this question: On what days of the week does American Idol air in the Philippines?

Answer: Thursday and Friday

Question: Although Brandenburg was a part of the Holy Roman Empire, the Prussian lands were not within the Holy Roman Empire and were with the administration by the Teutonic Order grandmasters under jurisdiction of the Emperor. In return for supporting Emperor Leopold I in the War of the Spanish Succession, Elector Frederick III was allowed to crown himself "King in Prussia" in 1701. The new kingdom ruled by the Hohenzollern dynasty became known as the Kingdom of Prussia. The designation "Kingdom of Prussia" was gradually applied to the various lands of Brandenburg-Prussia. To differentiate from the larger entity, the former Duchy of Prussia became known as Altpreuen ("Old Prussia"), the province of Prussia, or "East Prussia".
Is there an answer to this question: In what year was the War of the Spanish Succession?

Answer:
unanswerable