Problem: Anti-aircraft warfare:

Until the 1950s guns firing ballistic munitions were the standard weapon; guided missiles then became dominant, except at the very shortest ranges. However, the type of shell or warhead and its fuzing and, with missiles the guidance arrangement, were and are varied. Targets are not always easy to destroy; nonetheless, damaged aircraft may be forced to abort their mission and, even if they manage to return and land in friendly territory, may be out of action for days or permanently. Ignoring small arms and smaller machine-guns, ground-based air defence guns have varied in calibre from 20 mm to at least 150 mm.

After guns firing ballistic munitions lost their appeal, what weapon took their place?
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A: guided missiles


Problem: for any constant c. Matrix groups over these fields fall under this regime, as do adele rings and adelic algebraic groups, which are basic to number theory. Galois groups of infinite field extensions such as the absolute Galois group can also be equipped with a topology, the so-called Krull topology, which in turn is central to generalize the above sketched connection of fields and groups to infinite field extensions. An advanced generalization of this idea, adapted to the needs of algebraic geometry, is the étale fundamental group.
What is basic to adele rings?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
At the beginning of a match, an official tosses a coin and allows the captain of the visiting team call heads or tails. The captain of the team winning the coin toss is given the option of having first choice, or of deferring first choice to the other captain. The captain making first choice may either choose a) to kick off or receive the kick and the beginning of the half, or b) which direction of the field to play in. The remaining choice is given to the opposing captain. Before the resumption of play in the second half, the captain that did not have first choice in the first half is given first choice. Teams usually choose to defer, so it is typical for the team that wins the coin toss to kick to begin the first half and receive to begin the second.
What is one option the opposing captain is given  if they choose first choice after winning the coin toss?
A: unanswerable


Context and question: In March 1912, in Chihuahua, Gen. Pascual Orozco revolted. Immediately President Francisco Madero commanded Gen. Victoriano Huerta of the Federal Army, to put down the Orozco revolt. The governor of Chihuahua mobilized the state militia led by Colonel Pancho Villa to supplement General Huerta. By June, Villa notified Huerta that the Orozco revolt had been put down and that the militia would consider themselves no longer under Huerta's command and would depart. Huerta became furious and ordered that Villa be executed. Raúl Madero, Madero's brother, intervened to save Villa's life. Jailed in Mexico City, Villa fled to the United States. Madero's time as leader was short-lived, ended by a coup d'état in 1913 led by Gen. Victoriano Huerta; Orozco sided with Huerta, and Huerta made him one of his generals.
Who notified Huerta the revolt had been put down?
Answer: Villa


Question: Many historical linguists view any speech form as a dialect of the older medium of communication from which it developed.[citation needed] This point of view sees the modern Romance languages as dialects of Latin, modern Greek as a dialect of Ancient Greek, Tok Pisin as a dialect of English, and North Germanic as dialects of Old Norse. This paradigm is not entirely problem-free. It sees genetic relationships as paramount: the "dialects" of a "language" (which itself may be a "dialect" of a yet older language) may or may not be mutually intelligible. Moreover, a parent language may spawn several "dialects" which themselves subdivide any number of times, with some "branches" of the tree changing more rapidly than others.
Is there an answer to this question: According to this few, what language is Ancient Greek a dialect of?

Answer: unanswerable


Question: Christianity (59%), particularly Catholicism (33%), was the most prevalently practiced religion in New York as of 2014, followed by Judaism, with approximately 1.1 million Jews in New York City, over half living in Brooklyn. Islam ranks third in New York City, with official estimates ranging between 600,000 and 1,000,000 observers and including 10% of the city's public schoolchildren, followed by Hinduism, Buddhism, and a variety of other religions, as well as atheism. In 2014, 24% self-identified with no organized religious affiliation.
Is there an answer to this question: The second most prominent religion in New York is what?

Answer:
Judaism