Here is a question about this article: The waterwheel appeared in Chinese records during the Han. As mentioned by Huan Tan in about 20 AD, they were used to turn gears that lifted iron trip hammers, and were used in pounding, threshing and polishing grain. However, there is no sufficient evidence for the watermill in China until about the 5th century. The Nanyang Commandery Administrator Du Shi (d. 38 AD) created a waterwheel-powered reciprocator that worked the bellows for the smelting of iron. Waterwheels were also used to power chain pumps that lifted water to raised irrigation ditches. The chain pump was first mentioned in China by the philosopher Wang Chong in his 1st-century-AD Balanced Discourse.
What is the answer to this question: Who was the author of the essay entitled Balance Discourse?
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So... Wang Chong

Here is a question about this article: Cubism was relevant to an architecture seeking a style that needed not refer to the past. Thus, what had become a revolution in both painting and sculpture was applied as part of "a profound reorientation towards a changed world". The Cubo-Futurist ideas of Filippo Tommaso Marinetti influenced attitudes in avant-garde architecture. The influential De Stijl movement embraced the aesthetic principles of Neo-plasticism developed by Piet Mondrian under the influence of Cubism in Paris. De Stijl was also linked by Gino Severini to Cubist theory through the writings of Albert Gleizes. However, the linking of basic geometric forms with inherent beauty and ease of industrial applicationwhich had been prefigured by Marcel Duchamp from 1914was left to the founders of Purism, Amedee Ozenfant and Charles-Edouard Jeanneret (better known as Le Corbusier,) who exhibited paintings together in Paris and published Apres le cubisme in 1918. Le Corbusier's ambition had been to translate the properties of his own style of Cubism to architecture. Between 1918 and 1922, Le Corbusier concentrated his efforts on Purist theory and painting. In 1922, Le Corbusier and his cousin Jeanneret opened a studio in Paris at 35 rue de Sevres. His theoretical studies soon advanced into many different architectural projects.
What is the answer to this question: Who linked De Stijl to Cubist theory?
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So... Gino Severini

Here is a question about this article: The Directorate of Analysis produces all-source intelligence investigation on key foreign and intercontinental issues relating to powerful and sometimes anti-government sensitive topics. It has four regional analytic groups, six groups for transnational issues, and three focus on policy, collection, and staff support. There is an office dedicated to Iraq, and regional analytical Offices covering the Near Eastern and South Asian Analysis, the Office of Russian and European Analysis, and the Office of Asian Pacific, Asian Pacific, Latin American, and African Analysis and African Analysis.
What is the answer to this question: How many groups does the Directorate of Analysis have for transnational issues?
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So...
six