Problem: Kievan Rus%27:

The last ruler to maintain united state was Mstislav the Great. After his death in 1132 the Kievan Rus' fell into recession and a rapid decline, and Mstislav's successor Yaropolk II of Kiev instead of focussing on the external threat of the Cumans was embroiled in conflicts with the growing power of the Novgorod Republic. In 1169, as the Kievan Rus' state was full of internal conflict, Andrei Bogolyubsky of Vladimir sacked the city of Kiev. The sack of the city fundamentally changed the perception of Kiev and was evidence of the fragmentation of the Kievan Rus'. By the end of the 12th century, the Kievan state became even further fragmented and had been divided into roughly twelve different principalities.

Who was the last ruller to keep the region united?
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A: Mstislav the Great

Problem: Atlantic City, New Jersey:

At the 2010 United States Census, there were 39,558 people, 15,504 households, and 8,558 families residing in the city. The population density was 3,680.8 per square mile (1,421.2/km2). There were 20,013 housing units at an average density of 1,862.2 per square mile (719.0/km2). The racial makeup of the city was 26.65% (10,543) White, 38.29% (15,148) Black or African American, 0.61% (242) Native American, 15.55% (6,153) Asian, 0.05% (18) Pacific Islander, 14.03% (5,549) from other races, and 4.82% (1,905) from two or more races. Hispanics or Latinos of any race were 30.45% (12,044) of the population.

How many people were residing in Atlantic City during the 2010 United States Census?
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A: 39,558

Problem: Letter case:

Originally alphabets were written entirely in majuscule letters, spaced between well-defined upper and lower bounds. When written quickly with a pen, these tended to turn into rounder and much simpler forms. It is from these that the first minuscule hands developed, the half-uncials and cursive minuscule, which no longer stayed bound between a pair of lines. These in turn formed the foundations for the Carolingian minuscule script, developed by Alcuin for use in the court of Charlemagne, which quickly spread across Europe. The advantage of the minuscule over majuscule was improved, faster readability.[citation needed]

What is a common advantage of miniscule over majuscule handwriting?
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A: faster readability

Problem: Russian language:

In the 20th century, Russian was mandatorily taught in the schools of the members of the old Warsaw Pact and in other countries that used to be satellites of the USSR. In particular, these countries include Poland, Bulgaria, the Czech Republic, Slovakia, Hungary, Albania, former East Germany and Cuba. However, younger generations are usually not fluent in it, because Russian is no longer mandatory in the school system. According to the Eurobarometer 2005 survey, though, fluency in Russian remains fairly high (2040%) in some countries, in particular those where the people speak a Slavic language and thereby have an edge in learning Russian (namely, Poland, Czech Republic, Slovakia, and Bulgaria).

What is the fluency in Polish in some countries according to the Eurobarometer?
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A:
unanswerable