Problem: New Delhi:

In recent Mercer's 2015 annual quality-of-living survey, New Delhi ranks at number 154 out of 230 cities due to bad air quality and pollution. The World Health Organization ranked New Delhi as the world's worst polluted city in 2014 among about 1,600 cities the organization tracked around the world.

How many cities were studied in Mercer's 2015 quality of living survey?
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A: 230

Problem: The word ale comes from Old English ealu (plural ealo), in turn from Proto-Germanic *alu (plural *alu), ultimately from the Proto-Indo-European base *helut-, which holds connotations of "sorcery, magic, possession, intoxication". The word beer comes from Old English beor, from Proto-Germanic *beuza, probably from Proto-Indo-European *beusom, originally "brewer's yeast, beer dregs", although other theories have been provided connecting the word with Old English beow, "barley", or Latin bibere, "to drink". On the currency of two words for the same thing in the Germanic languages, the 12th-century Old Icelandic poem Alvissmal says, "Ale it is called among men, but among the gods, beer."
What is the plural of the word ale?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In an influential 1988 paper, Timothy Rowe defined Mammalia phylogenetically as the crown group mammals, the clade consisting of the most recent common ancestor of living monotremes (echidnas and platypuses) and therian mammals (marsupials and placentals) and all descendants of that ancestor. Since this ancestor lived in the Jurassic period, Rowe's definition excludes all animals from the earlier Triassic, despite the fact that Triassic fossils in the Haramiyida have been referred to the Mammalia since the mid-19th century.
By Rowe's definition, when did he start to exclude animals?
A: Triassic

Context and question: In 1999, there was a double homicide in the Westside Clothing store on Lincoln Boulevard. During the incident, Culver City gang members David "Puppet" Robles and Jesse "Psycho" Garcia entered the store masked and began opening fire, killing Anthony and Michael Juarez. They then ran outside to a getaway vehicle driven by a third Culver City gang member, who is now also in custody. The clothing store was believed to be a local hang out for Santa Monica gang members. The dead included two men from Northern California who had merely been visiting the store's owner, their cousin, to see if they could open a similar store in their area. Police say the incident was in retaliation for a shooting committed by the Santa Monica 13 gang days before the Juarez brothers were gunned down.
In what year was there a double homicide?
Answer: 1999

Question: Comcast was given an "F" for its corporate governance practices in 2010, by Corporate Library, an independent shareholder-research organization. According to Corporate Library, Comcast's board of directors ability to oversee and control management was severely compromised (at least in 2010) by the fact that several of the directors either worked for the company or had business ties to it (making them susceptible to management pressure), and a third of the directors were over 70 years of age. According to the Wall Street Journal nearly two-thirds of the flights of Comcast's $40 million corporate jet purchased for business travel related to the NBCU acquisition, were to CEO Brian Roberts' private homes or to resorts.
Is there an answer to this question: What company did Comcast give an F to?

Answer: unanswerable

The British Isles are a group of islands off the north-western coast of continental Europe that consist of the islands of Great Britain, Ireland and over six thousand smaller isles. Situated in the North Atlantic, the islands have a total area of approximately 315,159 km2, and a combined population of just under 70 million. Two sovereign states are located on the islands: Ireland (which covers roughly five-sixths of the island with the same name) and the United Kingdom of Great Britain and Northern Ireland. The British Isles also include three Crown Dependencies: the Isle of Man and, by tradition, the Bailiwick of Jersey and the Bailiwick of Guernsey in the Channel Islands, although the latter are not physically a part of the archipelago.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): With a total population of just over 75 million, what is the total area of the islands?
Ah, so..
unanswerable