Problem: Web browser:

Most browsers support HTTP Secure and offer quick and easy ways to delete the web cache, download history, form and search history, cookies, and browsing history. For a comparison of the current security vulnerabilities of browsers, see comparison of web browsers.

What do most cookies support?
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A: unanswerable

Problem: In contrast, Europe has a greater history of unitary states than North America, thus European "federalism" argues for a weaker central government, relative to a unitary state. The modern American usage of the word is much closer to the European sense. As the power of the Federal government has increased, some people have perceived a much more unitary state than they believe the Founding Fathers intended. Most people politically advocating "federalism" in the United States argue in favor of limiting the powers of the federal government, especially the judiciary (see Federalist Society, New Federalism).
Who has a lesser history of unitary states?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The large magnitude of solar energy available makes it a highly appealing source of electricity. The United Nations Development Programme in its 2000 World Energy Assessment found that the annual potential of solar energy was 1,57549,837 exajoules (EJ). This is several times larger than the total world energy consumption, which was 559.8 EJ in 2012.
Who estimated the annual potential of solar energy in 2000?
A: The United Nations Development Programme

Context and question: Draught beer's environmental impact can be 68% lower than bottled beer due to packaging differences. A life cycle study of one beer brand, including grain production, brewing, bottling, distribution and waste management, shows that the CO2 emissions from a 6-pack of micro-brew beer is about 3 kilograms (6.6 pounds). The loss of natural habitat potential from the 6-pack of micro-brew beer is estimated to be 2.5 square meters (26 square feet). Downstream emissions from distribution, retail, storage and disposal of waste can be over 45% of a bottled micro-brew beer's CO2 emissions. Where legal, the use of a refillable jug, reusable bottle or other reusable containers to transport draught beer from a store or a bar, rather than buying pre-bottled beer, can reduce the environmental impact of beer consumption.
What can cause a loss of 2.5 square feet of natural habitat?
Answer: unanswerable

Question: Spectre had its world premiere in London on 26 October 2015 at the Royal Albert Hall, the same day as its general release in the United Kingdom and Republic of Ireland. Following the announcement of the start of filming, Paramount Pictures brought forward the release of Mission: Impossible Rogue Nation to avoid competing with Spectre. In March 2015 IMAX corporation announced that Spectre would be screened in its cinemas, following Skyfall's success with the company. In the UK it received a wider release than Skyfall, with a minimum of 647 cinemas including 40 IMAX screens, compared to Skyfall's 587 locations and 21 IMAX screens.
Is there an answer to this question: What movie prompted IMAX to show Spectre?

Answer: Skyfall

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Production capacity in Britain and the United States was improved by the invention of the cotton gin by the American Eli Whitney in 1793. Before the development of cotton gins, the cotton fibers had to be pulled from the seeds tediously by hand. By the late 1700s a number of crude ginning machines had been developed. However, to produce a bale of cotton required over 600 hours of human labor, making large-scale production uneconomical in the United States, even with the use of humans as slave labor. The gin that Whitney manufactured (the Holmes design) reduced the hours down to just a dozen or so per bale. Although Whitney patented his own design for a cotton gin, he manufactured a prior design from Henry Odgen Holmes, for which Holmes filed a patent in 1796. Improving technology and increasing control of world markets allowed British traders to develop a commercial chain in which raw cotton fibers were (at first) purchased from colonial plantations, processed into cotton cloth in the mills of Lancashire, and then exported on British ships to captive colonial markets in West Africa, India, and China (via Shanghai and Hong Kong).
Before the use of the cotton gin, how were bales separated?
A:
unanswerable