Problem: Asphalt:

Canadian bitumen does not differ substantially from oils such as Venezuelan extra-heavy and Mexican heavy oil in chemical composition, and the real difficulty is moving the extremely viscous bitumen through oil pipelines to the refinery. Many modern oil refineries are extremely sophisticated and can process non-upgraded bitumen directly into products such as gasoline, diesel fuel, and refined asphalt without any preprocessing. This is particularly common in areas such as the US Gulf coast, where refineries were designed to process Venezuelan and Mexican oil, and in areas such as the US Midwest where refineries were rebuilt to process heavy oil as domestic light oil production declined. Given the choice, such heavy oil refineries usually prefer to buy bitumen rather than synthetic oil because the cost is lower, and in some cases because they prefer to produce more diesel fuel and less gasoline. By 2015 Canadian production and exports of non-upgraded bitumen exceeded that of synthetic crude oil at over 1.3 million barrels (21010^3 m3) per day, of which about 65% was exported to the United States.

Other than Venezuelan-light oil, what type of oil does Canadian bitumen not differ greatly from?
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A: unanswerable

Problem: The North Korean contributions to the Chinese Communist victory were not forgotten after the creation of the People's Republic of China in 1949. As a token of gratitude, between 50,000 and 70,000 Korean veterans that served in the PLA were sent back along with their weapons, and they later played a significant role in the initial invasion of South Korea. China promised to support the North Koreans in the event of a war against South Korea. The Chinese support created a deep division between the Korean Communists, and Kim Il-sung's authority within the Communist party was challenged by the Chinese faction led by Pak Il-yu, who was later purged by Kim.
What caused a problem within the Korean Communist Party?
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Answer: Chinese support

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
At the time of the Berlin Conference, Africa contained one-fifth of the world's population living in one-quarter of the world's land area. However, from Europe's perspective, they were dividing an unknown continent. European countries established a few coastal colonies in Africa by the mid-nineteenth century, which included Cape Colony (Great Britain), Angola (Portugal), and Algeria (France), but until the late nineteenth century Europe largely traded with free African states without feeling the need for territorial possession. Until the 1880s most of Africa remained unchartered, with western maps from the period generally showing blank spaces for the continent's interior.
What was Europe's perspective o Africa containing one-fifth of the worlds population?
A: they were dividing an unknown continent.

Context and question: Archaeologist Louis Binford criticised the idea that early hominids and early humans were hunters. On the basis of the analysis of the skeletal remains of the consumed animals, he concluded that hominids and early humans were mostly scavengers, not hunters, and this idea is popular among some archaeologists and paleoanthropologists. Robert Blumenschine proposed the idea of confrontational scavenging, which involves challenging and scaring off other predators after they have made a kill, which he suggests could have been the leading method of obtaining protein-rich meat by early humans.
What would early humans be able to obtain when hunting?
Answer: unanswerable

Question: It was only in the 1980s that digital telephony transmission networks became possible, such as with ISDN networks, assuring a minimum bit rate (usually 128 kilobits/s) for compressed video and audio transmission. During this time, there was also research into other forms of digital video and audio communication. Many of these technologies, such as the Media space, are not as widely used today as videoconferencing but were still an important area of research. The first dedicated systems started to appear in the market as ISDN networks were expanding throughout the world. One of the first commercial videoconferencing systems sold to companies came from PictureTel Corp., which had an Initial Public Offering in November, 1984.
Is there an answer to this question: What is an example of an early form of digital video and audio communication?

Answer: the Media space

This is held to be the first explanation of the modern concept of totalitarian state. Burke regarded the war with France as ideological, against an "armed doctrine". He wished that France would not be partitioned due to the effect this would have on the balance of power in Europe, and that the war was not against France, but against the revolutionaries governing her. Burke said: "It is not France extending a foreign empire over other nations: it is a sect aiming at universal empire, and beginning with the conquest of France".
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What did Burke think the war with France was against?
Ah, so..
an "armed doctrine"