Problem: Genetic studies on Jews show that most Jews worldwide bear a common genetic heritage which originates in the Middle East, and that they bear their strongest resemblance to the peoples of the Fertile Crescent. The genetic composition of different Jewish groups shows that Jews share a common genetic pool dating back 4,000 years, as a marker of their common ancestral origin. Despite their long-term separation and beside their shared genetic origin, Jews also maintained a common culture, tradition, and language.
How far back does the Jews' shared common genetic pool date?
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Answer: 4,000 years

Problem: In the 18th century, the Moroccan Sultan Moulay Ismail "the Bloodthirsty" (16721727) raised a corps of 150,000 black slaves, called his Black Guard, who coerced the country into submission.
How many black slaves did he own?
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Answer: 150,000

Problem: According to CIA World Factbook, the people of Republic of the Congo are largely a mix of Catholics (33.1%), Awakening Lutherans (22.3%) and other Protestants (19.9%). Followers of Islam make up 1.6%, and this is primarily due to an influx of foreign workers into the urban centers.
What religion is notable due to an influx of foreign workers in the rural areas?
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Answer:
unanswerable