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 socks did Arsenal players wear during the 1969-70 season?
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A: unanswerable

Problem: Rawski writes that Altan Khan's conversion to the Gelug "can be interpreted as an attempt to expand his authority in his conflict with his nominal superior, Tumen Khan." To further cement the Mongol-Tibetan alliance, the great-grandson of Altan Khanthe 4th Dalai Lama (15891616)was made the fourth Dalai Lama. In 1642, the 5th Dalai Lama (16171682) became the first to wield effective political control over Tibet.
To make the Mongol-Tibetan alliance stronger who became the 4th Dalai Lama?
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Answer: the great-grandson of Altan Khan

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The American Banjo Museum located in the Bricktown Entertainment district is dedicated to preserving and promoting the music and heritage of America's native musical instrument the banjo. With a collection valued at $3.5 million it is truly a national treasure. An interpretive exhibits tells the evolution of the banjo from its humble roots in American slavery, to bluegrass, to folk and world music.
How much is the collection worth in the museum?
A: $3.5 million

Context and question: The CJK ideographs currently have codes only for their precomposed form. Still, most of those ideographs comprise simpler elements (often called radicals in English), so in principle, Unicode could have decomposed them, as it did with Hangul. This would have greatly reduced the number of required code points, while allowing the display of virtually every conceivable ideograph (which might do away with some of the problems caused by Han unification). A similar idea is used by some input methods, such as Cangjie and Wubi. However, attempts to do this for character encoding have stumbled over the fact that ideographs do not decompose as simply or as regularly as Hangul does.
What would be the benefit of Unicode decomposing ideographs?
Answer: greatly reduced the number of required code points

Question: In 2010, there were concerns among Tajik officials that Islamic militarism in the east of the country was on the rise following the escape of 25 militants from a Tajik prison in August, an ambush that killed 28 Tajik soldiers in the Rasht Valley in September, and another ambush in the valley in October that killed 30 soldiers, followed by fighting outside Gharm that left 3 militants dead. To date the country's Interior Ministry asserts that the central government maintains full control over the country's east, and the military operation in the Rasht Valley was concluded in November 2010. However, fighting erupted again in July 2012. In 2015 Russia will send more troops to Tajikistan, as confirmed by a report of STRATFOR (magazine online)
Is there an answer to this question: How many solider were killed in September when Islamic militants escaped?

Answer: 28 Tajik soldiers

By 1989 Germany was nearing reunification and the Cold War was coming to a close. Army leadership reacted by starting to plan for a reduction in strength. By November 1989 Pentagon briefers were laying out plans to reduce army end strength by 23%, from 750,000 to 580,000. A number of incentives such as early retirement were used. In 1990 Iraq invaded its smaller neighbor, Kuwait, and U.S. land forces, quickly deployed to assure the protection of Saudi Arabia. In January 1991 Operation Desert Storm commenced, a U.S.-led coalition which deployed over 500,000 troops, the bulk of them from U.S. Army formations, to drive out Iraqi forces. The campaign ended in total victory, as Western coalition forces routed the Iraqi Army, organized along Soviet lines, in just one hundred hours.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What operation began in January 1991?
Ah, so..
Desert Storm