Problem: Eton College:

Not all boys who pass the College election examination choose to become King's Scholars. If they choose instead to belong to one of the 24 Oppidan Houses, they are known as Oppidan Scholars. Oppidan scholarships may also be awarded for consistently performing with distinction in School and external examinations. To gain an Oppidan Scholarship, a boy must have either three distinctions in a row or four throughout his career. Within the school, an Oppidan Scholar is entitled to use the letters OS after his name.

Under what circumstances are Oppidan Scholarships awarded?
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A: consistently performing with distinction in School and external examinations

Problem: The American Civil War caught both sides unprepared. The Confederacy hoped to win by getting Britain and France to intervene, or else by wearing down the North's willingness to fight. The U.S. sought a quick victory focused on capturing the Confederate capital at Richmond, Virginia. The Confederates under Robert E. Lee tenaciously defended their capital until the very end. The war spilled across the continent, and even to the high seas. Most of the material and personnel of the South were used up, while the North prospered.
Who led the Confederate forces not defending Richmond throughout the war?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Hunting is the practice of killing or trapping any animal, or pursuing or tracking it with the intent of doing so. Hunting wildlife or feral animals is most commonly done by humans for food, recreation, to remove predators which are dangerous to humans or domestic animals, or for trade. In the 2010s, lawful hunting is distinguished from poaching, which is the illegal killing, trapping or capture of the hunted species. The species that are hunted are referred to as game or prey and are usually mammals and birds.
What species are usually hunted?
A: mammals and birds

Context and question: Melbourne has a highly diversified economy with particular strengths in finance, manufacturing, research, IT, education, logistics, transportation and tourism. Melbourne houses the headquarters for many of Australia's largest corporations, including five of the ten largest in the country (based on revenue), and four of the largest six in the country (based on market capitalisation) (ANZ, BHP Billiton (the world's largest mining company), the National Australia Bank and Telstra), as well as such representative bodies and think tanks as the Business Council of Australia and the Australian Council of Trade Unions. Melbourne's suburbs also have the Head Offices of Wesfarmers companies Coles (including Liquorland), Bunnings, Target, K-Mart & Officeworks. The city is home to Australia's largest and busiest seaport which handles more than $75 billion in trade every year and 39% of the nation's container trade. Melbourne Airport provides an entry point for national and international visitors, and is Australia's second busiest airport.[citation needed]
Which company is the world's largest mining company?
Answer: BHP Billiton

Question: The sensors are primarily single cells that detect light, chemicals, pressure waves and contact, and are present on the head, appendages (if any) and other parts of the body. Nuchal ("on the neck") organs are paired, ciliated structures found only in polychaetes, and are thought to be chemosensors. Some polychaetes also have various combinations of ocelli ("little eyes") that detect the direction from which light is coming and camera eyes or compound eyes that can probably form images. The compound eyes probably evolved independently of arthropods' eyes. Some tube-worms use ocelli widely spread over their bodies to detect the shadows of fish, so that they can quickly withdraw into their tubes. Some burrowing and tube-dwelling polychaetes have statocysts (tilt and balance sensors) that tell them which way is down. A few polychaete genera have on the undersides of their heads palps that are used both in feeding and as "feelers", and some of these also have antennae that are structurally similar but probably are used mainly as "feelers".
Is there an answer to this question: What are nuchal organs thought to kill?

Answer: unanswerable

QUES: Tyson Research Center is a 2,000-acre (809 ha) field station located west of St. Louis on the Meramec River. Washington University obtained Tyson as surplus property from the federal government in 1963. It is used by the University as a biological field station and research/education center. In 2010 the Living Learning Center was named one of the first two buildings accredited nationwide as a "living building" under the Living Building Challenge, opened to serve as a biological research station and classroom for summer students.

Besides the Living Learning Center what was the other building accredited as a "living building"?
What is the answer?
ANS:
unanswerable