Problem: Bermuda:

Bermuda's national cricket team participated in the Cricket World Cup 2007 in the West Indies. Their most famous player is a 130 kilograms (290 lb) police officer named Dwayne Leverock. But India defeated Bermuda and set a record of 413 runs in a One-Day International (ODI). Bermuda were knocked out of the World Cup. Also very well-known is David Hemp, a former captain of Glamorgan in English first class cricket. The annual "Cup Match" cricket tournament between rival parishes St George's in the east and Somerset in the west is the occasion for a popular national holiday. This tournament began in 1872 when Captain Moresby of the Royal Navy introduced the game to Bermuda, holding a match at Somerset to mark forty years since the unjust thraldom of slavery. The East End versus West End rivalry resulted from the locations of the St. George's Garrison (the original army headquarters in Bermuda) on Barrack Hill, St. George's, and the Royal Naval Dockyard at Ireland Island. Moresby founded the Somerset Cricket Club which plays the St. George's Cricket Club in this game (the membership of both clubs has long been mostly civilian).

What team participated in the 2007 World Cup Cricket?
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A: unanswerable

Problem: Since the late 1980s, significant development has occurred in the Bronx, first stimulated by the city's "Ten-Year Housing Plan" and community members working to rebuild the social, economic and environmental infrastructure by creating affordable housing. Groups affiliated with churches in the South Bronx erected the Nehemiah Homes with about 1,000 units. The grass roots organization Nos Quedamos' endeavor known as Melrose Commons began to rebuild areas in the South Bronx. The IRT White Plains Road Line (2 5 trains) began to show an increase in riders. Chains such as Marshalls, Staples, and Target opened stores in the Bronx. More bank branches opened in the Bronx as a whole (rising from 106 in 1997 to 149 in 2007), although not primarily in poor or minority neighborhoods, while the Bronx still has fewer branches per person than other boroughs.
How many bank branches were in the Bronx by 2007?
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Answer: 149

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Hitler's interest in this strategy forced Goring and Jeschonnek to review the air war against Britain in January 1941. This led to Goring and Jeschonnek agreeing to Hitler's Directive 23, Directions for operations against the British War Economy, which was published on 6 February 1941 and gave aerial interdiction of British imports by sea top priority. This strategy had been recognised before the war, but Operation Eagle Attack and the following Battle of Britain had got in the way of striking at Britain's sea communications and diverted German air strength to the campaign against the RAF and its supporting structures. The OKL had always regarded the interdiction of sea communications of less importance than bombing land-based aircraft industries.
What was Hitler's Directive 23?
A: Directions for operations against the British War Economy

Context and question: By 1954, Olympic Games apparatus and events for both men and women had been standardized in modern format, and uniform grading structures (including a point system from 1 to 15) had been agreed upon. At this time, Soviet gymnasts astounded the world with highly disciplined and difficult performances, setting a precedent that continues. The new medium of television has helped publicize and initiate a modern age of gymnastics. Both men's and women's gymnastics now attract considerable international interest, and excellent gymnasts can be found on every continent. Nadia Comaneci received the first perfect score, at the 1976 Summer Olympics held in Montreal, Canada. She was coached in Romania by coach, (Hungarian ethnicity), Bela Karolyi. Comaneci scored four of her perfect tens on the uneven bars, two on the balance beam and one in the floor exercise. Even with Nadia's perfect scores, the Romanians lost the gold medal to the Soviet Union. Nevertheless, Comaneci became an Olympic icon.
Who was the first gymnastics judge?
Answer: unanswerable

Question: Clinton returned in 1780 with 14,000 soldiers. American General Benjamin Lincoln was trapped and surrendered his entire 5,400-man force after a long fight, and the Siege of Charles Towne was the greatest American defeat of the war. Several Americans who escaped the carnage joined other militias, including those of Francis Marion, the "Swamp Fox"; and Andrew Pickens. The British retained control of the city until December 1782. After the British left, the city's name was officially changed to Charleston in 1783.
Is there an answer to this question: How many soldiers did General Lincoln lead?

Answer: 5,400

Question: The ability of birds to navigate during migrations cannot be fully explained by endogenous programming, even with the help of responses to environmental cues. The ability to successfully perform long-distance migrations can probably only be fully explained with an accounting for the cognitive ability of the birds to recognize habitats and form mental maps. Satellite tracking of day migrating raptors such as ospreys and honey buzzards has shown that older individuals are better at making corrections for wind drift.
Is there an answer to this question: What do the birds do to successfully perform long distance migration?

Answer:
recognize habitats and form mental maps