Problem: Tristan da Cunha:

Executive authority is vested in the Queen, who is represented in the territory by the Governor of Saint Helena. As the Governor resides permanently in Saint Helena, an Administrator is appointed to represent the Governor in the islands. The Administrator is a career civil servant in the Foreign Office and is selected by London. Since 1998, each Administrator has served a single, three-year term (which begins in September, upon arrival of the supply ship from Cape Town.) The Administrator acts as the local head of government, and takes advice from the Tristan da Cunha Island Council. Alex Mitham was appointed Tristan da Cunha’s 22nd Administrator and arrived, with his wife Hasene, to take over from Sean Burns in September 2013. The Island Council is made up of eight elected and three appointed members, who serve a 3-year term which begins in February (or March).

Who is the Governor of Saint Helena represented by?
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A: unanswerable


Problem: The act of predation can be broken down into a maximum of four stages: Detection of prey, attack, capture and finally consumption. The relationship between predator and prey is one that is typically beneficial to the predator, and detrimental to the prey species. Sometimes, however, predation has indirect benefits to the prey species, though the individuals preyed upon themselves do not benefit. This means that, at each applicable stage, predator and prey species are in an evolutionary arms race to maximize their respective abilities to obtain food or avoid being eaten. This interaction has resulted in a vast array of adaptations in both groups.
At most there are how many step of predator-prey interaction? 
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Answer: maximum of four stages


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The announcement came two years after Dell Inc. returned to private ownership, claiming that it faced bleak prospects and would need several years out of the public eye to rebuild its business. It's thought that the company's value has roughly doubled since then. EMC was being pressured by Elliott Management, a hedge fund holding 2.2% of EMC's stock, to reorganize their unusual "Federation" structure, in which EMC's divisions were effectively being run as independent companies. Elliott argued this structure deeply undervalued EMC's core "EMC II" data storage business, and that increasing competition between EMC II and VMware products was confusing the market and hindering both companies. The Wall Street Journal estimated that in 2014 Dell had revenue of $27.3 billion from personal computers and $8.9bn from servers, while EMC had $16.5bn from EMC II, $1bn from RSA Security, $6bn from VMware, and $230 million from Pivotal Software. EMC owns around 80 percent of the stock of VMware. The proposed acquisition will maintain VMware as a separate company, held via a new tracking stock, while the other parts of EMC will be rolled into Dell. Once the acquisition closes Dell will again publish quarterly financial results, having ceased these on going private in 2013.
What news source published revenue estimations between Dell and MEC?
A: unanswerable


Context and question: Dante Alighieri's Divine Comedy, written in the early 14th century, merged a medieval world view with classical ideals. Another promoter of the Italian language was Boccaccio with his Decameron. The application of the vernacular did not entail a rejection of Latin, and both Dante and Boccaccio wrote prolifically in Latin as well as Italian, as would Petrarch later (whose Canzoniere also promoted the vernacular and whose contents are considered the first modern lyric poems). Together the three poets established the Tuscan dialect as the norm for the modern Italian language.
What is one of Boccaccio's works that helped promote the Italian language?
Answer: Decameron


Question: The early 1990s additionally saw the rise in mainstream US popularity for house music. Pop recording artist Madonna's 1990 single "Vogue" became an international hit single and topped the US charts. The single is credited as helping to bring house music to the US mainstream.
Is there an answer to this question: Who sang the hit single "Pop"?

Answer: unanswerable


QUES: Zinc serves a purely structural role in zinc fingers, twists and clusters. Zinc fingers form parts of some transcription factors, which are proteins that recognize DNA base sequences during the replication and transcription of DNA. Each of the nine or ten Zn2+ ions in a zinc finger helps maintain the finger's structure by coordinately binding to four amino acids in the transcription factor. The transcription factor wraps around the DNA helix and uses its fingers to accurately bind to the DNA sequence.

How many amino acids do the Zn2+ ions bind to?
What is the answer?
ANS:
four