Problem: Unicode:

Unicode defines two mapping methods: the Unicode Transformation Format (UTF) encodings, and the Universal Coded Character Set (UCS) encodings. An encoding maps (possibly a subset of) the range of Unicode code points to sequences of values in some fixed-size range, termed code values. The numbers in the names of the encodings indicate the number of bits per code value (for UTF encodings) or the number of bytes per code value (for UCS encodings). UTF-8 and UTF-16 are probably the most commonly used encodings. UCS-2 is an obsolete subset of UTF-16; UCS-4 and UTF-32 are functionally equivalent.

What is functionally equivalent to USC-2?
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A: unanswerable

Problem: The region is serviced by 4,200 km (2,600 mi) of roads used by 6 million vehicles. Train travel is well established in the Alps, with, for instance 120 km (75 mi) of track for every 1,000 km2 (390 sq mi) in a country such as Switzerland. Most of Europe's highest railways are located there. Moreover, plans are underway to build a 57 km (35 mi)-long sub-alpine tunnel connecting the older Lotschberg and Gotthard tunnels built in the 19th century.
How many vehicles use the roads?
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Answer: 6 million

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The English term comics is used as a singular noun when it refers to the medium and a plural when referring to particular instances, such as individual strips or comic books. Though the term derives from the humorous (or comic) work that predominated in early American newspaper comic strips, it has become standard also for non-humorous works. It is common in English to refer to the comics of different cultures by the terms used in their original languages, such as manga for Japanese comics, or bandes dessinees for French-language comics. There is no consensus amongst theorists and historians on a definition of comics; some emphasize the combination of images and text, some sequentiality or other image relations, and others historical aspects such as mass reproduction or the use of recurring characters. The increasing cross-pollination of concepts from different comics cultures and eras has further made definition difficult.
French comics are not known as what?
A: unanswerable

Context and question: The climate in Southeast Alaska is a mid-latitude oceanic climate (Koppen climate classification: Cfb) in the southern sections and a subarctic oceanic climate (Koppen Cfc) in the northern parts. On an annual basis, Southeast is both the wettest and warmest part of Alaska with milder temperatures in the winter and high precipitation throughout the year. Juneau averages over 50 in (130 cm) of precipitation a year, and Ketchikan averages over 150 in (380 cm). This is also the only region in Alaska in which the average daytime high temperature is above freezing during the winter months.
Southern Alaska has what two Koppen climate classifications?
Answer: mid-latitude oceanic climate (Koppen climate classification: Cfb) in the southern sections and a subarctic oceanic climate (Koppen Cfc) in the northern parts

Question: The forces converged in the largest sea battle of World War II up to that point. Over the previous month American destroyers had destroyed 17 of 25 submarines out of Ozawa's screening force. Repeated U.S. raids destroyed the Japanese land-based planes. Ozawa's main attack lacked coordination, with the Japanese planes arriving at their targets in a staggered sequence. Following a directive from Nimitz, the U.S. carriers all had combat information centers, which interpreted the flow of radar data and radioed interception orders to the Hellcats. The result was later dubbed the Great Marianas Turkey Shoot. The few attackers to reach the U.S. fleet encountered massive AA fire with proximity fuzes. Only one American warship was slightly damaged.
Is there an answer to this question: In what sequence did Japanese planes arrive at their targets?

Answer: staggered

Problem: Bill %26 Melinda Gates Foundation:

Since the launch of the "Reinvent the Toilet Challenge", more than a dozen research teams, mainly at universities in the U.S., Europe, India, China and South Africa, have received grants to develop innovative on-site and off-site waste treatment solutions for the urban poor. The grants were in the order of 400,000 USD for their first phase, followed by typically 1-3 million USD for their second phase; many of them investigated resource recovery or processing technologies for excreta or fecal sludge.

What off-site treatment solutions received grants?
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A:
unanswerable