Problem: Franco-Prussian War:

The Battle of Worth (also known as Froschwiller or Reichshoffen) began when the two armies clashed again on 6 August near Worth in the town of Froschwiller, about 10 miles (16 km) from Wissembourg. The Crown Prince of Prussia's 3rd army had, on the quick reaction of his Chief of Staff General von Blumenthal, drawn reinforcements which brought its strength up to 140,000 troops. The French had been slowly reinforced and their force numbered only 35,000. Although badly outnumbered, the French defended their position just outside Froschwiller. By afternoon, the Germans had suffered c.10,500 killed or wounded and the French had lost a similar number of casualties and another c.9,200 men taken prisoner, a loss of about 50%. The Germans captured Froschwiller which sat on a hilltop in the centre of the French line. Having lost any hope for victory and facing a massacre, the French army disengaged and retreated in a westerly direction towards Bitche and Saverne, hoping to join French forces on the other side of the Vosges mountains. The German 3rd army did not pursue the French but remained in Alsace and moved slowly south, attacking and destroying the French garrisons in the vicinity.

On what date did the Battle of Worth begin?
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A: 6 August

Problem: To continue evacuating a chamber indefinitely without requiring infinite growth, a compartment of the vacuum can be repeatedly closed off, exhausted, and expanded again. This is the principle behind positive displacement pumps, like the manual water pump for example. Inside the pump, a mechanism expands a small sealed cavity to create a vacuum. Because of the pressure differential, some fluid from the chamber (or the well, in our example) is pushed into the pump's small cavity. The pump's cavity is then sealed from the chamber, opened to the atmosphere, and squeezed back to a minute size.
How is a vacuum created inside of a manual water pump?
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Answer: a mechanism expands a small sealed cavity

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Burke claimed that Bolingbroke's arguments against revealed religion could apply to all social and civil institutions as well. Lord Chesterfield and Bishop Warburton (and others) initially thought that the work was genuinely by Bolingbroke rather than a satire. All the reviews of the work were positive, with critics especially appreciative of Burke's quality of writing. Some reviewers failed to notice the ironic nature of the book, which led to Burke stating in the preface to the second edition (1757) that it was a satire.
What did Burke note in the preface of the first edition of the book?
A: unanswerable

Context and question: The Hellenistic states of Asia and Egypt were run by an occupying imperial elite of Greco-Macedonian administrators and governors propped up by a standing army of mercenaries and a small core of Greco-Macedonian settlers. Promotion of immigration from Greece was important in the establishment of this system. Hellenistic monarchs ran their kingdoms as royal estates and most of the heavy tax revenues went into the military and paramilitary forces which preserved their rule from any kind of revolution. Macedonian and Hellenistic monarchs were expected to lead their armies on the field, along with a group of privileged aristocratic companions or friends (hetairoi, philoi) which dined and drank with the king and acted as his advisory council. Another role that was expected the monarch fill was that of charitable patron of his people, this public philanthropy could mean building projects and handing out gifts but also promotion of Greek culture and religion.
Who handed out gifts in the promotion of Greek culture and religion?
Answer: the monarch

Question: According to 16th-century mystic Rabbi Elijah of Chelm, Ashkenazi Jews lived in Jerusalem during the 11th century. The story is told that a German-speaking Palestinian Jew saved the life of a young German man surnamed Dolberger. So when the knights of the First Crusade came to siege Jerusalem, one of Dolberger's family members who was among them rescued Jews in Palestine and carried them back to Worms to repay the favor. Further evidence of German communities in the holy city comes in the form of halakhic questions sent from Germany to Jerusalem during the second half of the 11th century.
Is there an answer to this question: Who noted that Ashkenazi Jews lived in Jerusalem during the 11th century?

Answer: Rabbi Elijah of Chelm

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The return of former player George Graham as manager in 1986 brought a third period of glory. Arsenal won the League Cup in 1987, Graham's first season in charge. This was followed by a League title win in 198889, won with a last-minute goal in the final game of the season against fellow title challengers Liverpool. Graham's Arsenal won another title in 199091, losing only one match, won the FA Cup and League Cup double in 1993, and a second European trophy, the European Cup Winners' Cup, in 1994. Graham's reputation was tarnished when he was found to have taken kickbacks from agent Rune Hauge for signing certain players, and he was dismissed in 1995. His replacement, Bruce Rioch, lasted for only one season, leaving the club after a dispute with the board of directors.
Where was the League Cup played in 1987?
A:
unanswerable