Problem: Saint Helena:

The Dutch Republic formally made claim to Saint Helena in 1633, although there is no evidence that they ever occupied, colonised or fortified it. By 1651, the Dutch had mainly abandoned the island in favour of their colony at the Cape of Good Hope.

What year did the Dutch abandon the island?
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A: 1651

Problem: In soil, microorganisms that reside in the rhizosphere (a zone that includes the root surface and the soil that adheres to the root after gentle shaking) carry out nitrogen fixation, converting nitrogen gas to nitrogenous compounds. This serves to provide an easily absorbable form of nitrogen for many plants, which cannot fix nitrogen themselves. Many other bacteria are found as symbionts in humans and other organisms. For example, the presence of over 1,000 bacterial species in the normal human gut flora of the intestines can contribute to gut immunity, synthesise vitamins, such as folic acid, vitamin K and biotin, convert sugars to lactic acid (see Lactobacillus), as well as fermenting complex undigestible carbohydrates. The presence of this gut flora also inhibits the growth of potentially pathogenic bacteria (usually through competitive exclusion) and these beneficial bacteria are consequently sold as probiotic dietary supplements.
How does gut flora prevent growth of pathogenic bacteria?
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Answer: through competitive exclusion

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In July 2007, the National Archives announced it would make its collection of Universal Newsreels from 1929 to 1967 available for purchase through CreateSpace, an Amazon.com subsidiary. During the announcement, Weinstein noted that the agreement would "... reap major benefits for the public-at-large and for the National Archives." Adding, "While the public can come to our College Park, MD research room to view films and even copy them at no charge, this new program will make our holdings much more accessible to millions of people who cannot travel to the Washington, DC area." The agreement also calls for CreateSpace partnership to provide the National Archives with digital reference and preservation copies of the films as part of NARA's preservation program.
How much does it cost to view films on Amazon.com from 1929 to 1967?
A: unanswerable

Context and question: Increased interest in modern a cappella (particularly collegiate a cappella) can be seen in the growth of awards such as the Contemporary A Cappella Recording Awards (overseen by the Contemporary A Cappella Society) and competitions such as the International Championship of Collegiate A Cappella for college groups and the Harmony Sweepstakes for all groups. In December 2009, a new television competition series called The Sing-Off aired on NBC. The show featured eight a cappella groups from the United States and Puerto Rico vying for the prize of $100,000 and a recording contract with Epic Records/Sony Music. The show was judged by Ben Folds, Shawn Stockman, and Nicole Scherzinger and was won by an all-male group from Puerto Rico called Nota. The show returned for a second and third season, won by Committed and Pentatonix, respectively.
What popular a capella competition is not specific to college groups?
Answer: Harmony Sweepstakes

Question: At the end of the Late Middle Ages, professional actors began to appear in England and Europe. Richard III and Henry VII both maintained small companies of professional actors. Their plays were performed in the Great Hall of a nobleman's residence, often with a raised platform at one end for the audience and a "screen" at the other for the actors. Also important were Mummers' plays, performed during the Christmas season, and court masques. These masques were especially popular during the reign of Henry VIII who had a House of Revels built and an Office of Revels established in 1545.
Is there an answer to this question: What did Henry VIII build in 1545 for the benefit of the theatrical arts?

Answer: House of Revels

QUES: Euro1080, a division of the former and now bankrupt Belgian TV services company Alfacam, broadcast HDTV channels to break the pan-European stalemate of "no HD broadcasts mean no HD TVs bought means no HD broadcasts ..." and kick-start HDTV interest in Europe. The HD1 channel was initially free-to-air and mainly comprised sporting, dramatic, musical and other cultural events broadcast with a multi-lingual soundtrack on a rolling schedule of 4 or 5 hours per day.

What was Euro1080 hoping to kick-start by broadcasting HDTV channels?
What is the answer?
ANS:
HDTV interest in Europe