Problem: Republic of the Congo:

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 city is not located on the Congo River?
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A: unanswerable

Problem: On the assumption that intellectual property rights are actual rights Stallman argues that this claim does not live to the historical intentions behind these laws, which in the case of copyright served as a censorship system, and later on, a regulatory model for the printing press that may have benefited authors incidentally, but never interfered with the freedom of average readers. Still referring to copyright, he cites legal literature such as the United States Constitution and case law to demonstrate that it is meant to be an optional and experimental bargain that temporarily trades property rights and free speech for public, not private, benefit in the form of increased artistic production and knowledge. He mentions that "if copyright were a natural right nothing could justify terminating this right after a certain period of time".
What restricts free Speech?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The discovery of new maritime trade routes by Western European states allowed them to avoid the Ottoman trade monopoly. The Portuguese discovery of the Cape of Good Hope in 1488 initiated a series of Ottoman-Portuguese naval wars in the Indian Ocean throughout the 16th century. The Somali Muslim Ajuran Empire, allied with the Ottomans, defied the Portuguese economic monopoly in the Indian Ocean by employing a new coinage which followed the Ottoman pattern, thus proclaiming an attitude of economic independence in regard to the Portuguese.
What did the Portuguese discover in 1488?
A: the Cape of Good Hope

Context and question: Accurate present day child labour information is difficult to obtain because of disagreements between data sources as to what constitutes child labour. In some countries, government policy contributes to this difficulty. For example, the overall extent of child labour in China is unclear due to the government categorizing child labour data as "highly secret". China has enacted regulations to prevent child labour; still, the practice of child labour is reported to be a persistent problem within China, generally in agriculture and low-skill service sectors as well as small workshops and manufacturing enterprises.
In 2014, the U.S. Department of Labor issued a List of Goods Produced by Child Labor or Forced Labor where China was attributed 12 goods the majority of which were produced by both underage children and indentured labourers. The report listed electronics, garments, toys and coal among other goods.
Chinese children have been known to make electronics, toys and what else?
Answer: garments

Question: It is the most widely used vaccine worldwide, with more than 90% of all children being vaccinated. The immunity it induces decreases after about ten years. As tuberculosis is uncommon in most of Canada, the United Kingdom, and the United States, BCG is administered only to those people at high risk. Part of the reasoning against the use of the vaccine is that it makes the tuberculin skin test falsely positive, reducing the test's use in screening. A number of new vaccines are currently in development.
Is there an answer to this question: For about how long does full immunity from the TB vaccine last?

Answer: ten years

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
By 750, the feast of her conception was widely celebrated in the Byzantine East, under the name of the Conception (active) of Saint Anne. In the West it was known as the feast of the Conception (passive) of Mary, and was associated particularly with the Normans, whether these introduced it directly from the East or took it from English usage. The spread of the feast, by now with the adjective "Immaculate" attached to its title, met opposition on the part of some, on the grounds that sanctification was possible only after conception. Critics included Saints Bernard of Clairvaux, Albertus Magnus and Thomas Aquinas. Other theologians defended the expression "Immaculate Conception", pointing out that sanctification could be conferred at the first moment of conception in view of the foreseen merits of Christ, a view held especially by Franciscans.
What is St. Albertus Magnus say could be conferred at the moment of conception?
A:
unanswerable