Problem: John von Neumann (/vn nmn/; Hungarian: Neumann Janos Lajos, pronounced [njmn jano ljo]; December 28, 1903 February 8, 1957) was a Hungarian-American pure and applied mathematician, physicist, inventor, computer scientist, and polymath. He made major contributions to a number of fields, including mathematics (foundations of mathematics, functional analysis, ergodic theory, geometry, topology, and numerical analysis), physics (quantum mechanics, hydrodynamics, fluid dynamics and quantum statistical mechanics), economics (game theory), computing (Von Neumann architecture, linear programming, self-replicating machines, stochastic computing), and statistics.
What were the occupations that Von Neuman held?
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Answer: pure and applied mathematician, physicist, inventor, computer scientist, and polymath

Problem: There is controversy around the recognition of the Alsacian flag. The authentic historical flag is the Rot-un-Wiss ; Red and White are commonly found on the coat of arms of Alsacian cities (Strasbourg, Mulhouse, Selestat...) and of many Swiss cites, especially in Basel's region. The German region Hesse uses a flag similar to the Rot-un-Wiss. As it underlines the Germanic roots of the region, it was replaced in 1949 by a new "Union jack-like" flag representing the union of the two deprtements. It has, however, no real historical relevance. It has been since replaced again by a slightly different one, also representing the two departements. With the purpose of "Frenchizing" the region, the Rot-un-Wiss has not been recognized by Paris. Some overzealous statesmen have called it a Nazi invention - while its origins date back to the XIth century and the Red and White banner of Gerard de Lorraine (aka. d'Alsace). The Rot-un-Wiss flag is still known as the real historical emblem of the region by most of the population and the departments' parliaments and has been widely used during protests against the creation of a new "super-region" gathering Champagne-Ardennes, Lorraine and Alsace, namely on Colmar's statue of liberty.
Who created the Union-jack-like flag?
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Answer: unanswerable

Problem: The prevalence of phantom pain in upper limb amputees is nearly 82%, and in lower limb amputees is 54%. One study found that eight days after amputation, 72 percent of patients had phantom limb pain, and six months later, 65 percent reported it. Some amputees experience continuous pain that varies in intensity or quality; others experience several bouts a day, or it may occur only once every week or two. It is often described as shooting, crushing, burning or cramping. If the pain is continuous for a long period, parts of the intact body may become sensitized, so that touching them evokes pain in the phantom limb, or phantom limb pain may accompany urination or defecation.
What percentage of people who've had upper limbs amputated feel phantom pain?
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Answer:
nearly 82%