Problem: Arsenal F.C.:

For many years Arsenal's away colours were white shirts and either black or white shorts. In the 196970 season, Arsenal introduced an away kit of yellow shirts with blue shorts. This kit was worn in the 1971 FA Cup Final as Arsenal beat Liverpool to secure the double for the first time in their history. Arsenal reached the FA Cup final again the following year wearing the red and white home strip and were beaten by Leeds United. Arsenal then competed in three consecutive FA Cup finals between 1978 and 1980 wearing their "lucky" yellow and blue strip, which remained the club's away strip until the release of a green and navy away kit in 198283. The following season, Arsenal returned to the yellow and blue scheme, albeit with a darker shade of blue than before.

What color shirts were worn by Liverpool players in 1971?
---
A: unanswerable

Problem: In April 2013, Marvel and other Disney conglomerate components began announcing joint projects. With ABC, a Once Upon a Time graphic novel was announced for publication in September. With Disney, Marvel announced in October 2013 that in January 2014 it would release its first title under their joint "Disney Kingdoms" imprint "Seekers of the Weird", a five-issue miniseries. On January 3, 2014, fellow Disney subsidiary Lucasfilm Limited, LLC announced that as of 2015, Star Wars comics would once again be published by Marvel.
What was the first title published in that joint line of comics?
---
Answer: "Seekers of the Weird"

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Following the assassination of Phillip II, his son Alexander III ("The Great") assumed the leadership of the League of Corinth and launched an invasion of the Persian Empire with the combined forces of all Greek states in 334 BC. Undefeated in battle, Alexander had conquered the Persian Empire in its entirety by 330 BC. By the time of his death in 323 BC, he had created one of the largest empires in history, stretching from Greece to India. His empire split into several kingdoms upon his death, the most famous of which were the Seleucid Empire, Ptolemaic Egypt, the Greco-Bactrian Kingdom and the Indo-Greek Kingdom. Many Greeks migrated to Alexandria, Antioch, Seleucia and the many other new Hellenistic cities in Asia and Africa. Although the political unity of Alexander's empire could not be maintained, it resulted in the Hellenistic civilization and spread the Greek language and Greek culture in the territories conquered by Alexander. Greek science, technology and mathematics are generally considered to have reached their peak during the Hellenistic period.
In which year did Alexander III die?
A: 323 BC

Context and question: Most of the Low Countries had come under the rule of the House of Burgundy and subsequently the House of Habsburg. In 1549 Holy Roman Emperor Charles V issued the Pragmatic Sanction, which further unified the Seventeen Provinces under his rule. Charles was succeeded by his son, King Philip II of Spain. In 1568 the Netherlands, led by William I of Orange, revolted against Philip II because of high taxes, persecution of Protestants by the government, and Philip's efforts to modernize and centralize the devolved-medieval government structures of the provinces. This was the start of the Eighty Years' War.
In what year did the Netherlands rise up against Philip II?
Answer: 1568

Question: Meanwhile, Le Verrier by letter urged Berlin Observatory astronomer Johann Gottfried Galle to search with the observatory's refractor. Heinrich d'Arrest, a student at the observatory, suggested to Galle that they could compare a recently drawn chart of the sky in the region of Le Verrier's predicted location with the current sky to seek the displacement characteristic of a planet, as opposed to a fixed star. On the evening of 23 September 1846, the day Galle received the letter, he discovered Neptune within 1 of where Le Verrier had predicted it to be, about 12 from Adams' prediction. Challis later realised that he had observed the planet twice, on 4 and 12 August, but did not recognise it as a planet because he lacked an up-to-date star map and was distracted by his concurrent work on comet observations.
Is there an answer to this question: What was Challis looking for when he saw Neptune the first two times?

Answer: comet observations

The internal working language of the ECB is generally English, and press conferences are usually held in English. External communications are handled flexibly: English is preferred (though not exclusively) for communication within the ESCB (i.e. with other central banks) and with financial markets; communication with other national bodies and with EU citizens is normally in their respective language, but the ECB website is predominantly English; official documents such as the Annual Report are in the official languages of the EU.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What language does the ECB generally use?
Ah, so..
English