Problem: Sexual orientation:

From at least the late nineteenth century in Europe, there was speculation that the range of human sexual response looked more like a continuum than two or three discrete categories. Berlin sexologist Magnus Hirschfeld published a scheme in 1896 that measured the strength of an individual's sexual desire on two independent 10-point scales, A (homosexual) and B (heterosexual). A heterosexual individual may be A0, B5; a homosexual individual may be A5, B0; an asexual would be A0, B0; and someone with an intense attraction to both sexes would be A9, B9.

How many points were on each scale?
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A: 10-point

Problem: United States presidential election, 2004:

The first debate was held on September 30 at the University of Miami, moderated by Jim Lehrer of PBS. During the debate, slated to focus on foreign policy, Kerry accused Bush of having failed to gain international support for the 2003 Invasion of Iraq, saying the only countries assisting the U.S. during the invasion were the United Kingdom and Australia. Bush replied to this by saying, "Well, actually, he forgot Poland." Later, a consensus formed among mainstream pollsters and pundits that Kerry won the debate decisively, strengthening what had come to be seen as a weak and troubled campaign. In the days after, coverage focused on Bush's apparent annoyance with Kerry and numerous scowls and negative facial expressions.

What did the media air to show Lehrer's annoyance with Kerry?
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A: unanswerable

Problem: Race (human categorization):

From the 17th through 19th centuries, the merging of folk beliefs about group differences with scientific explanations of those differences produced what one scholar has called an "ideology of race". According to this ideology, races are primordial, natural, enduring and distinct. It was further argued that some groups may be the result of mixture between formerly distinct populations, but that careful study could distinguish the ancestral races that had combined to produce admixed groups. Subsequent influential classifications by Georges Buffon, Petrus Camper and Christoph Meiners all classified "Negros" as inferior to Europeans. In the United States the racial theories of Thomas Jefferson were influential. He saw Africans as inferior to Whites especially in regards to their intellect, and imbued with unnatural sexual appetites, but described Native Americans as equals to whites.

What were races considered to be, according to the ideology of race?
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A: primordial, natural, enduring and distinct

Problem: Uranium:

On 2 December 1942, as part of the Manhattan Project, another team led by Enrico Fermi was able to initiate the first artificial self-sustained nuclear chain reaction, Chicago Pile-1. Working in a lab below the stands of Stagg Field at the University of Chicago, the team created the conditions needed for such a reaction by piling together 400 short tons (360 metric tons) of graphite, 58 short tons (53 metric tons) of uranium oxide, and six short tons (5.5 metric tons) of uranium metal, a majority of which was supplied by Westinghouse Lamp Plant in a makeshift production process.

On what date was the last self-sustained nuclear chain reaction created artificially?
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A:
unanswerable