Problem: Cotton:

Successful cultivation of cotton requires a long frost-free period, plenty of sunshine, and a moderate rainfall, usually from 600 to 1,200 mm (24 to 47 in). Soils usually need to be fairly heavy, although the level of nutrients does not need to be exceptional. In general, these conditions are met within the seasonally dry tropics and subtropics in the Northern and Southern hemispheres, but a large proportion of the cotton grown today is cultivated in areas with less rainfall that obtain the water from irrigation. Production of the crop for a given year usually starts soon after harvesting the preceding autumn. Cotton is naturally a perennial but is grown as an annual to help control pests. Planting time in spring in the Northern hemisphere varies from the beginning of February to the beginning of June. The area of the United States known as the South Plains is the largest contiguous cotton-growing region in the world. While dryland (non-irrigated) cotton is successfully grown in this region, consistent yields are only produced with heavy reliance on irrigation water drawn from the Ogallala Aquifer. Since cotton is somewhat salt and drought tolerant, this makes it an attractive crop for arid and semiarid regions. As water resources get tighter around the world, economies that rely on it face difficulties and conflict, as well as potential environmental problems. For example, improper cropping and irrigation practices have led to desertification in areas of Uzbekistan, where cotton is a major export. In the days of the Soviet Union, the Aral Sea was tapped for agricultural irrigation, largely of cotton, and now salination is widespread.

What is the optimum amount of rainfall for cotton growth?
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A: 600 to 1,200 mm


Problem: In Mark, Jesus is crucified along with two rebels, and the day goes dark for three hours. Jesus calls out to God, then gives a shout and dies. The curtain of the Temple is torn in two. Matthew follows Mark, adding an earthquake and the resurrection of saints. Luke also follows Mark, though he describes the rebels as common criminals, one of whom defends Jesus, who in turn promises that he (Jesus) and the criminal will be together in paradise. Luke portrays Jesus as impassive in the face of his crucifixion. John includes several of the same elements as those found in Mark, though they are treated differently.
How did the criminals react to their own crucifixion?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Other Armenian diasporans that rose to fame in classical or international music circles are world-renowned French-Armenian singer and composer Charles Aznavour, pianist Sahan Arzruni, prominent opera sopranos such as Hasmik Papian and more recently Isabel Bayrakdarian and Anna Kasyan. Certain Armenians settled to sing non-Armenian tunes such as the heavy metal band System of a Down (which nonetheless often incorporates traditional Armenian instrumentals and styling into their songs) or pop star Cher. In the Armenian diaspora, Armenian revolutionary songs are popular with the youth. These songs encourage Armenian patriotism and are generally about Armenian history and national heroes.
What type of musician is Sahan Arzruni?
A: pianist


Context and question: Craig Venter and Francis Collins of the National Institute of Health jointly made the announcement of the mapping of the human genome in 2000. Upon examining the data from the genome mapping, Venter realized that although the genetic variation within the human species is on the order of 1–3% (instead of the previously assumed 1%), the types of variations do not support notion of genetically defined races. Venter said, "Race is a social concept. It's not a scientific one. There are no bright lines (that would stand out), if we could compare all the sequenced genomes of everyone on the planet." "When we try to apply science to try to sort out these social differences, it all falls apart."
What doesn't the genetic variation within the human species support?
Answer: notion of genetically defined races


Question: Coordinative definition has two major features. The first has to do with coordinating units of length with certain physical objects. This is motivated by the fact that we can never directly apprehend length. Instead we must choose some physical object, say the Standard Metre at the Bureau International des Poids et Mesures (International Bureau of Weights and Measures), or the wavelength of cadmium to stand in as our unit of length. The second feature deals with separated objects. Although we can, presumably, directly test the equality of length of two measuring rods when they are next to one another, we can not find out as much for two rods distant from one another. Even supposing that two rods, whenever brought near to one another are seen to be equal in length, we are not justified in stating that they are always equal in length. This impossibility undermines our ability to decide the equality of length of two distant objects. Sameness of length, to the contrary, must be set by definition.
Is there an answer to this question: What can be determined about two objects regardless of their distance from each other?

Answer: unanswerable


QUES: Because of his ability to motivate nationalistic passions, "men, women, and children wept and wailed in the streets" after hearing of his death, according to Nutting. The general Arab reaction was one of mourning, with thousands of people pouring onto the streets of major cities throughout the Arab world. Over a dozen people were killed in Beirut as a result of the chaos, and in Jerusalem, roughly 75,000 Arabs marched through the Old City chanting, "Nasser will never die." As a testament to his unchallenged leadership of the Arab people, following his death, the headline of the Lebanese Le Jour read, "One hundred million human beings—the Arabs—are orphans." Sherif Hetata, a former political prisoner and later member Nasser's ASU, said that "Nasser's greatest achievement was his funeral. The world will never again see five million people crying together."

How many eople died in Breuit because of unrest caused by Nasser's death?
What is the answer?
ANS:
Over a dozen