Problem: USB:

The USB standard specifies relatively loose tolerances for compliant USB connectors to minimize physical incompatibilities in connectors from different vendors. To address a weakness present in some other connector standards, the USB specification also defines limits to the size of a connecting device in the area around its plug. This was done to prevent a device from blocking adjacent ports due to the size of the cable strain relief mechanism (usually molding integral with the cable outer insulation) at the connector. Compliant devices must either fit within the size restrictions or support a compliant extension cable that does.

Why were loose tolerances allowed for compliant USB connectors?
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A: to minimize physical incompatibilities in connectors from different vendors

Problem: Rapid increases in a number of commodity prices followed the collapse in the housing bubble. The price of oil nearly tripled from $50 to $147 from early 2007 to 2008, before plunging as the financial crisis began to take hold in late 2008. Experts debate the causes, with some attributing it to speculative flow of money from housing and other investments into commodities, some to monetary policy, and some to the increasing feeling of raw materials scarcity in a fast-growing world, leading to long positions taken on those markets, such as Chinese increasing presence in Africa. An increase in oil prices tends to divert a larger share of consumer spending into gasoline, which creates downward pressure on economic growth in oil importing countries, as wealth flows to oil-producing states. A pattern of spiking instability in the price of oil over the decade leading up to the price high of 2008 has been recently identified. The destabilizing effects of this price variance has been proposed as a contributory factor in the financial crisis.
What is one of the reasons experts believe contributed to the volatilaty in oil prices in 2008?
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Answer: monetary policy

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Only service dress is suitable for CAF members to wear on any occasion, barring "dirty work" or combat. With gloves, swords, and medals (No. 1 or 1A), it is suitable for ceremonial occasions and "dressed down" (No. 3 or lower), it is suitable for daily wear. Generally, after the elimination of base dress (although still defined for the Air Force uniform), operational dress is now the daily uniform worn by most members of the CF, unless service dress is prescribed (such as at the NDHQ, on parades, at public events, etc.). Approved parkas are authorized for winter wear in cold climates and a light casual jacket is also authorized for cooler days. The navy, most army, and some other units have, for very specific occasions, a ceremonial/regimental full dress, such as the naval "high-collar" white uniform, kilted Highland, Scottish, and Irish regiments, and the scarlet uniforms of the Royal Military Colleges.
What is suitable for CAD members to wear on any occasion?
A: unanswerable

Context and question: During the First World War, Paris sometimes found itself on the front line; 600 to 1,000 Paris taxis played a small but highly important symbolic role in transporting 6,000 soldiers to the front line at the First Battle of the Marne. The city was also bombed by Zeppelins and shelled by German long-range guns. In the years after the war, known as Les Annees Folles, Paris continued to be a mecca for writers, musicians and artists from around the world, including Ernest Hemingway, Igor Stravinsky, James Joyce, Josephine Baker, Sidney Bechet and the surrealist Salvador Dali.
Who are some popular artists, writers and musicians that resided in Paris after the war?
Answer: Ernest Hemingway, Igor Stravinsky, James Joyce, Josephine Baker, Sidney Bechet and the surrealist Salvador Dali.

Question: In Indian philosophy, Yoga is among other things, the name of one of the six astika philosophical schools. The Yoga philosophical system is closely allied with the dualism premises of Samkhya school. The Yoga school accepts the Samkhya psychology and metaphysics, but is considered theistic because it accepts the concept of "personal god", unlike Samkhya. The epistemology of the Yoga school, like the Samkhya school, relies on three of six pramanas as the means of gaining reliable knowledge: pratyaksa (perception), anumana (inference) and sabda (aptavacana, word/testimony of reliable sources).
Is there an answer to this question: Which parts of Samkhya does Yoga reject?

Answer: unanswerable

Problem: Great power:

China, France, Russia, the United Kingdom and the United States are often referred to as great powers by academics due to "their political and economic dominance of the global arena". These five nations are the only states to have permanent seats with veto power on the UN Security Council. They are also the only recognized "Nuclear Weapons States" under the Nuclear Non-Proliferation Treaty, and maintain military expenditures which are among the largest in the world. However, there is no unanimous agreement among authorities as to the current status of these powers or what precisely defines a great power. For example, sources have at times referred to China, France, Russia and the United Kingdom as middle powers.

What treaty addresses global political and economic dominance?
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A:
unanswerable