Problem: Police:

Law enforcement in Ancient China was carried out by "prefects" for thousands of years since it developed in both the Chu and Jin kingdoms of the Spring and Autumn period. In Jin, dozens of prefects were spread across the state, each having limited authority and employment period. They were appointed by local magistrates, who reported to higher authorities such as governors, who in turn were appointed by the emperor, and they oversaw the civil administration of their "prefecture", or jurisdiction. Under each prefect were "subprefects" who helped collectively with law enforcement in the area. Some prefects were responsible for handling investigations, much like modern police detectives. Prefects could also be women. The concept of the "prefecture system" spread to other cultures such as Korea and Japan.

What did modern China call its police?
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A: unanswerable

Problem: Mimicry is a related phenomenon where an organism has a similar appearance to another species. One such example is the drone fly, which looks a lot like a bee, yet is completely harmless as it cannot sting at all. Another example of batesian mimicry is the io moth, (Automeris io), which has markings on its wings that resemble an owl's eyes. When an insectivorous predator disturbs the moth, it reveals its hind wings, temporarily startling the predator and giving it time to escape. Predators may also use mimicry to lure their prey, however. Female fireflies of the genus Photuris, for example, copy the light signals of other species, thereby attracting male fireflies, which are then captured and eaten (see aggressive mimicry).
What do drone flies copy to attract male fireflies?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
On December 8, the leaders of Russia, Ukraine, and Belarus secretly met in Belavezhskaya Pushcha, in western Belarus, and signed the Belavezha Accords, which proclaimed the Soviet Union had ceased to exist and announced formation of the Commonwealth of Independent States (CIS) as a looser association to take its place. They also invited other republics to join the CIS. Gorbachev called it an unconstitutional coup. However, by this time there was no longer any reasonable doubt that, as the preamble of the Accords put it, "the USSR, as a subject of international law and a geopolitical reality, is ceasing its existence."
What was coming to an end?
A: the USSR

Context and question: Other educational institutions in Armenia include the American University of Armenia and the QSI International School of Yerevan. The American University of Armenia has graduate programs in Business and Law, among others. The institution owes its existence to the combined efforts of the Government of Armenia, the Armenian General Benevolent Union, U.S. Agency for International Development, and the University of California. The extension programs and the library at AUA form a new focal point for English-language intellectual life in the city. Armenia also hosts a deployment of OLPC One Laptopschool Per child XO laptop-tablet schools.
What does OLPC stand for?
Answer: One Laptopschool Per child

Question: In the 14th century, much of the Greek peninsula was lost by the Byzantine Empire at first to the Serbs and then to the Ottomans. By the beginning of the 15th century, the Ottoman advance meant that Byzantine territory in Greece was limited mainly to its then-largest city, Thessaloniki, and the Peloponnese (Despotate of the Morea). After the fall of Constantinople to the Ottomans in 1453, the Morea was the last remnant of the Byzantine Empire to hold out against the Ottomans. However, this, too, fell to the Ottomans in 1460, completing the Ottoman conquest of mainland Greece. With the Turkish conquest, many Byzantine Greek scholars, who up until then were largely responsible for preserving Classical Greek knowledge, fled to the West, taking with them a large body of literature and thereby significantly contributing to the Renaissance.
Is there an answer to this question: A lot of Greece was lost by whom in the 14th century?

Answer: Byzantine Empire

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Between 1949 and the 1980s, telephone communications in Greece were a state monopoly by the Hellenic Telecommunications Organization, better known by its acronym, OTE. Despite the liberalization of telephone communications in the country in the 1980s, OTE still dominates the Greek market in its field and has emerged as one of the largest telecommunications companies in Southeast Europe. Since 2011, the company's major shareholder is Deutsche Telekom with a 40% stake, while the Greek state continues to own 10% of the company's shares. OTE owns several subsidiaries across the Balkans, including Cosmote, Greece's top mobile telecommunications provider, Cosmote Romania and Albanian Mobile Communications.
When did the liberalization of the telephone communications in Greece become impossible?
A:
unanswerable