Problem: Nigeria:

Nigeria was ranked 30th in the world in terms of GDP (PPP) in 2012. Nigeria is the United States' largest trading partner in sub-Saharan Africa and supplies a fifth of its oil (11% of oil imports). It has the seventh-largest trade surplus with the US of any country worldwide. Nigeria is the 50th-largest export market for US goods and the 14th-largest exporter of goods to the US. The United States is the country's largest foreign investor. The International Monetary Fund (IMF) projected economic growth of 9% in 2008 and 8.3% in 2009. The IMF further projects an 8% growth in the Nigerian economy in 2011.

Which sub-Saharan African nation does the most trade with the US?
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A: Nigeria

Problem: Between the third and fourth sessions the pope announced reforms in the areas of Roman Curia, revision of Canon Law, regulations for mixed marriages involving several faiths, and birth control issues. He opened the final session of the council, concelebrating with bishops from countries where the Church was persecuted. Several texts proposed for his approval had to be changed. But all texts were finally agreed upon. The Council was concluded on 8 December 1965, the Feast of the Immaculate Conception.
What did Paul VI enact between the third and fourth ecumenical sessions?
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Answer: reforms

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
International influences help to encourage legal actions to be taken in India, such as the Geneva Declaration of the Right of Children Act was passed in 1924. This act was followed by The Universal Declaration of Human Rights in 1948 to which incorporated the basic human rights and needs of children for proper progression and growth in their younger years. These international acts encouraged major changes to the workforce in India which occurred in 1986 when the Child Labour (Prohibition and Regulation) Act was put into place. This act prohibited hiring children younger than the age of 14, and from working in hazardous conditions.
What did the international acts do?
A: encouraged major changes to the workforce

Context and question: The capital, Brazzaville, is located on the Congo River, in the south of the country, immediately across from Kinshasa, the capital of the Democratic Republic of the Congo.
What is the capital of the Congo?
Answer: Brazzaville

Question: In 2015, fragments of a very early Quran, dating back to 1370 years ago, were discovered in the library of the University of Birmingham, England. According to the tests carried out by Oxford University Radiocarbon Accelerator Unit, "with a probability of more than 95%, the parchment was from between 568 and 645". The manuscript is written in Hijazi script, an early form of written Arabic. This is possibly the earliest extant exemplar of the Quran, but as the tests allow a range of possible dates, it cannot be said with certainty which of the existing versions is the oldest. Saudi scholar Saud al-Sarhan has expressed doubt over the age of the fragments as they contain dots and chapter separators that are believed to have originated later.
Is there an answer to this question: What feature of the Birmingham Quran fragments' text make some doubt that it is older than other known versions of the Quran?

Answer: dots and chapter separators

Question: Two assumptions underpinned the British approach to HAA fire; first, aimed fire was the primary method and this was enabled by predicting gun data from visually tracking the target and having its height. Second, that the target would maintain a steady course, speed and height. This HAA was to engage targets up to 24,000 feet. Mechanical, as opposed to igniferous, time fuses were required because the speed of powder burning varied with height so fuse length was not a simple function of time of flight. Automated fire ensured a constant rate of fire that made it easier to predict where each shell should be individually aimed.
Is there an answer to this question: Along with predicting the gun data from tracking the target, what else needed to be known about the target to enable the aimed fire?

Answer:
its height