Problem: The Blitz:

In June 1940, a German prisoner of war was overheard boasting that the British would never find the Knickebein, even though it was under their noses. The details of the conversation were passed to an RAF Air Staff technical advisor, Dr. R. V. Jones, who started an in-depth investigation which discovered that the Luftwaffe's Lorenz receivers were more than blind-landing devices. Jones therefore began a search for the German beams. Avro Ansons of the Beam Approach Training Development Unit (BATDU) were flown up and down Britain fitted with a 30 MHz receiver to detect them. Soon a beam was traced to Derby (which had been mentioned in Luftwaffe transmissions). The first jamming operations were carried out using requisitioned hospital electrocautery machines. A subtle form of distortion was introduced. Up to nine special transmitters directed their signals at the beams in a manner that widened its path, negating its ability to accurately locate targets. Confidence in the device was diminished by the time the Luftwaffe decided to launch large-scale raids. The counter operations were carried out by British Electronic Counter Measures (ECM) units under Wing Commander Edward Addison, No. 80 Wing RAF. The production of false radio navigation signals by re-transmitting the originals was a technique known as masking beacons (meacons).

The first jamming operation was carried out using what machines?
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A: electrocautery machines


Problem: Gaddafi organized demonstrations and distributed posters criticizing the monarchy. In October 1961, he led a demonstration protesting Syria's secession from the United Arab Republic. During this they broke windows of a local hotel accused of serving alcohol. Catching the authorities' attention, they expelled his family from Sabha. Gaddafi moved to Misrata, there attending Misrata Secondary School. Maintaining his interest in Arab nationalist activism, he refused to join any of the banned political parties active in the city – including the Arab Nationalist Movement, the Arab Socialist Ba'ath Party, and the Muslim Brotherhood – claiming he rejected factionalism. He read voraciously on the subjects of Nasser and the French Revolution of 1789, as well as the works of Syrian political theorist Michel Aflaq and biographies of Abraham Lincoln, Sun Yat-sen, and Mustafa Kemal Atatürk.
Gaddafi was an avid reader. Name three biographies that he read.
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Answer: Abraham Lincoln, Sun Yat-sen, and Mustafa Kemal Atatürk


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Apple's Safari had its first beta release in January 2003; as of April 2011, it had a dominant share of Apple-based web browsing, accounting for just over 7% of the entire browser market.
When was Apple founded?
A: unanswerable


Context and question: There were guilds of dyers who specialized in red in Venice and other large Europeans cities. The Rubia plant was used to make the most common dye; it produced an orange-red or brick red color used to dye the clothes of merchants and artisans. For the wealthy, the dye used was Kermes, made from a tiny scale insect which fed on the branches and leaves of the oak tree. For those with even more money there was Polish Cochineal; also known as Kermes vermilio or "Blood of Saint John", which was made from a related insect, the Margodes polonicus. It made a more vivid red than ordinary Kermes. The finest and most expensive variety of red made from insects was the "Kermes" of Armenia (Armenian cochineal, also known as Persian kirmiz), made by collecting and crushing Porphyophora hamelii, an insect which lived on the roots and stems of certain grasses. The pigment and dye merchants of Venice imported and sold all of these products and also manufactured their own color, called Venetian red, which was considered the most expensive and finest red in Europe. Its secret ingredient was arsenic, which brightened the color.
Which group in Europe used Kermes dye?
Answer: the wealthy


Question: Between the 1992–93 season and the 2012–13 season, Premier League clubs had won the UEFA Champions League four times (as well as supplying five of the runners-up), behind Spain's La Liga with six wins, and Italy's Serie A with five wins, and ahead of, among others, Germany's Bundesliga with three wins (see table here). The FIFA Club World Cup (or the FIFA Club World Championship, as it was originally called) has been won by Premier league clubs once (Manchester United in 2008), and they have also been runners-up twice, behind Brazil's Brasileirão with four wins, and Spain's La Liga and Italy's Serie A with two wins each (see table here).
Is there an answer to this question: Between 1992 and 2013, UEFA won Spain's La Liga four times and the Premier League won how many times?

Answer: unanswerable


Some linguists restrict the double-dot subscript ⟨◌̤⟩ to murmured sonorants, such as vowels and nasals, which are murmured throughout their duration, and use the superscript hook-aitch ⟨◌ʱ⟩ for the breathy-voiced release of obstruents.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is used for the loud-voiced release of obstruents?
Ah, so..
unanswerable