Problem: Middle Ages:

In Iberia, the Christian states, which had been confined to the north-western part of the peninsula, began to push back against the Islamic states in the south, a period known as the Reconquista. By about 1150, the Christian north had coalesced into the five major kingdoms of Leon, Castile, Aragon, Navarre, and Portugal. Southern Iberia remained under control of Islamic states, initially under the Caliphate of Cordoba, which broke up in 1031 into a shifting number of petty states known as taifas, who fought with the Christians until the Almohad Caliphate re-established centralised rule over Southern Iberia in the 1170s. Christian forces advanced again in the early 13th century, culminating in the capture of Seville in 1248.

What Islamic state controlled southern Iberia in the 1170s?
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A: the Almohad Caliphate

Problem: In the United States, the term "the 51st state" when applied to Canada can serve to highlight the similarities and close relationship between the United States and Canada. Sometimes the term is used disparagingly, intended to deride Canada as an unimportant neighbor. In the Quebec general election, 1989, the political party Parti 51 ran 11 candidates on a platform of Quebec seceding from Canada to join the United States (with its leader, Andre Perron, claiming Quebec could not survive as an independent nation). The party attracted just 3,846 votes across the province, 0.11% of the total votes cast. In comparison, the other parties in favour of sovereignty of Quebec in that election got 40.16% (PQ) and 1.22% (NPDQ).
What did the other parties receive that year?
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Answer: 40.16% (PQ) and 1.22% (NPDQ)

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Christianity is the predominant religion of Switzerland (about 71% of resident population and 75% of Swiss citizens), divided between the Catholic Church (38.21% of the population), the Swiss Reformed Church (26.93%), further Protestant churches (2.89%) and other Christian denominations (2.79%). There has been a recent rise in Evangelicalism. Immigration has brought Islam (4.95%) and Eastern Orthodoxy (around 2%) as sizeable minority religions. According to a 2015 poll by Gallup International, 12% of Swiss people self-identified as "convinced atheists."
What religion has immigration brought by 2%?
A: Eastern Orthodoxy

Context and question: Barcelona is one of three founding members of the Primera Division that have never been relegated from the top division, along with Athletic Bilbao and Real Madrid. In 2009, Barcelona became the first Spanish club to win the continental treble consisting of La Liga, Copa del Rey, and the UEFA Champions League, and also became the first football club to win six out of six competitions in a single year, completing the sextuple in also winning the Spanish Super Cup, UEFA Super Cup and FIFA Club World Cup. In 2011, the club became European champions again and won five trophies. This Barcelona team, which reached a record six consecutive Champions League semi-finals and won 14 trophies in just four years under Pep Guardiola, is considered by some in the sport to be the greatest team of all time. In June 2015, Barcelona became the first European club in history to achieve the continental treble twice.
What series of wins did Barcelona achieve in 2009?
Answer: continental treble

Question: From 1989 through 1996, the total area of the US was listed as 9,372,610 km2 (3,618,780 sq mi) (land + inland water only). The listed total area changed to 9,629,091 km2 (3,717,813 sq mi) in 1997 (Great Lakes area and coastal waters added), to 9,631,418 km2 (3,718,711 sq mi) in 2004, to 9,631,420 km2 (3,718,710 sq mi) in 2006, and to 9,826,630 km2 (3,794,080 sq mi) in 2007 (territorial waters added). Currently, the CIA World Factbook gives 9,826,675 km2 (3,794,100 sq mi), the United Nations Statistics Division gives 9,629,091 km2 (3,717,813 sq mi), and the Encyclopdia Britannica gives 9,522,055 km2 (3,676,486 sq mi)(Great Lakes area included but not coastal waters). These source consider only the 50 states and the Federal District, and exclude overseas territories.
Is there an answer to this question: Currently the World encyclopedia mileage of the United States is what?

Answer: unanswerable

QUES: Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining (see uranium mining). Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides. Extensive measures must be employed to extract the metal from its ore. High-grade ores found in Athabasca Basin deposits in Saskatchewan, Canada can contain up to 23% uranium oxides on average. Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali. The leachate is subjected to one of several sequences of precipitation, solvent extraction, and ion exchange. The resulting mixture, called yellowcake, contains at least 75% uranium oxides U3O8. Yellowcake is then calcined to remove impurities from the milling process before refining and conversion.

What is the average percentage of uranium oxide contained in the ores mined in the Athabasca Basin?
What is the answer?
ANS:
23%