Problem: Computer:

The differential analyser, a mechanical analog computer designed to solve differential equations by integration, used wheel-and-disc mechanisms to perform the integration. In 1876 Lord Kelvin had already discussed the possible construction of such calculators, but he had been stymied by the limited output torque of the ball-and-disk integrators. In a differential analyzer, the output of one integrator drove the input of the next integrator, or a graphing output. The torque amplifier was the advance that allowed these machines to work. Starting in the 1920s, Vannevar Bush and others developed mechanical differential analyzers.

What type of mechanisms did the differential analyzer use?
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A: wheel-and-disc

Problem: Spielberg directed 2015's Bridge of Spies, a Cold War thriller based on the 1960 U-2 incident, and focusing on James B. Donovan's negotiations with the Soviets for the release of pilot Gary Powers after his aircraft was shot down over Soviet territory. The film starred Tom Hanks as Donovan, as well as Mark Rylance, Amy Ryan, and Alan Alda, with a script by the Coen brothers. The film was shot from September to December 2014 on location in New York City, Berlin and Wroclaw, Poland (which doubled for East Berlin), and was released by Disney on October 16, 2015. Bridge of Spies received positive reviews from critics, and was nominated for six Academy Awards, including Best Picture.
Where was most of Bridge of Spies shot?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
It was principally the widespread introduction of a single feature, the pointed arch, which was to bring about the change that separates Gothic from Romanesque. The technological change permitted a stylistic change which broke the tradition of massive masonry and solid walls penetrated by small openings, replacing it with a style where light appears to triumph over substance. With its use came the development of many other architectural devices, previously put to the test in scattered buildings and then called into service to meet the structural, aesthetic and ideological needs of the new style. These include the flying buttresses, pinnacles and traceried windows which typify Gothic ecclesiastical architecture. But while pointed arch is so strongly associated with the Gothic style, it was first used in Western architecture in buildings that were in other ways clearly Romanesque, notably Durham Cathedral in the north of England, Monreale Cathedral and Cathedral of Cefalu in Sicily, Autun Cathedral in France.
What is the name of the cathedral in Sicily that first displayed the use of the pointed arch?
A: Cathedral of Cefalu

Context and question: The resulting Treaty of Schonbrunn in October 1809 was the harshest that France had imposed on Austria in recent memory. Metternich and Archduke Charles had the preservation of the Habsburg Empire as their fundamental goal, and to this end they succeeded by making Napoleon seek more modest goals in return for promises of friendship between the two powers. Nevertheless, while most of the hereditary lands remained a part of the Habsburg realm, France received Carinthia, Carniola, and the Adriatic ports, while Galicia was given to the Poles and the Salzburg area of the Tyrol went to the Bavarians. Austria lost over three million subjects, about one-fifth of her total population, as a result of these territorial changes. Although fighting in Iberia continued, the War of the Fifth Coalition would be the last major conflict on the European continent for the next three years.
The goal of Metternich and Archduke Charles regarding the Treaty of Schonbrunn was to attempt the preservation of what?
Answer: the Habsburg Empire

Question: From early in its development, ASCII was intended to be just one of several national variants of an international character code standard, ultimately published as ISO/IEC 646 (1972), which would share most characters in common but assign other locally useful characters to several code points reserved for "national use." However, the four years that elapsed between the publication of ASCII-1963 and ISO's first acceptance of an international recommendation during 1967 caused ASCII's choices for the national use characters to seem to be de facto standards for the world, causing confusion and incompatibility once other countries did begin to make their own assignments to these code points.
Is there an answer to this question: What shared no characters in common?

Answer: unanswerable

Problem: Estonia:

From 1228, after of the Livonian Crusade, through the 1560s, Estonia was part of Terra Mariana, established on 2 February 1207 as a principality of the Holy Roman Empire and proclaimed by Pope Innocent III in 1215 as subject to the Holy See. The southern parts of the country were conquered by Livonian Brothers of the Sword who joined the Teutonic Order in 1237 and became its branch known as the Livonian Order. The Duchy of Estonia was created out of the northern parts of the country and was a direct dominion of the King of Denmark from 1219 until 1346, when it was sold to the Teutonic Order and became part of the Ordenstaat. In 1343, the people of northern Estonia and Saaremaa rebelled against German rule in the St. George's Night Uprising, which was put down by 1345. The unsuccessful rebellion led to a consolidation of power for the Baltic German minority. For the subsequent centuries they remained the ruling elite in both cities and in the countryside.

What year did the Livonian Brothers join the Teutonic Order?
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A:
1237