The problem: Answer a question about this article:
Tuberculosis caused the most widespread public concern in the 19th and early 20th centuries as an endemic disease of the urban poor. In 1815, one in four deaths in England was due to "consumption". By 1918, one in six deaths in France was still caused by TB. After TB was determined to be contagious, in the 1880s, it was put on a notifiable disease list in Britain; campaigns were started to stop people from spitting in public places, and the infected poor were "encouraged" to enter sanatoria that resembled prisons (the sanatoria for the middle and upper classes offered excellent care and constant medical attention). Whatever the (purported) benefits of the "fresh air" and labor in the sanatoria, even under the best conditions, 50% of those who entered died within five years (circa 1916).
In what decade was TB's communicability finally realized?
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The answer: 1880s

The problem: Answer a question about this article:
Matter commonly exists in four states (or phases): solid, liquid and gas, and plasma. However, advances in experimental techniques have revealed other previously theoretical phases, such as BoseEinstein condensates and fermionic condensates. A focus on an elementary-particle view of matter also leads to new phases of matter, such as the quarkgluon plasma. For much of the history of the natural sciences people have contemplated the exact nature of matter. The idea that matter was built of discrete building blocks, the so-called particulate theory of matter, was first put forward by the Greek philosophers Leucippus (~490 BC) and Democritus (~470380 BC).
How many phases of matter are there?
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The answer: four

The problem: Answer a question about this article:
To accommodate the ruling in Hopwood v. Texas banning any use of race in school admissions, the State of Texas passed a law guaranteeing entry to any state university if a student finished in the top 10% of their graduating class. Florida and California have also replaced racial quotas with class rank and other criteria. Class rank tends to benefit top students at less competitive high schools, to the detriment of students at more competitive high schools. This effect, however, may be intentional since less-funded, less competitive schools are more likely to be schools where minority enrollment is high. Critics argue that class rank is more a measure of one's peers than of one's self. The top 10% rule adds racial diversity only because schools are still highly racially segregated because of residential patterns. The class rank rule has the same consequence as traditional affirmative action: opening schools to students who would otherwise not be admitted had the given school used a holistic, merit-based approach. From 1996 to 1998, Texas had merit-based admission to its state universities, and minority enrollment dropped. The state's adoption of the "top 10 percent" rule returned minority enrollment to pre-1996 levels.
After the state passed the top 10% rule, what happened to minority enrollment?
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The answer: returned minority enrollment to pre-1996 levels

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In 2012, President Rachide Sambu-balde Malam Bacai Sanha died. He belonged to PAIGC (African Party for the Independence of Guinea and Cape Verde), one of the two major political parties in Guinea-Bissau, along with the PRS (Party for Social Renewal). There are more than 20 minor parties.
How many minor political parties are there?
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The answer:
more than 20