Problem: Circadian rhythm:

The earliest recorded account of a circadian process dates from the 4th century B.C.E., when Androsthenes, a ship captain serving under Alexander the Great, described diurnal leaf movements of the tamarind tree. The observation of a circadian or diurnal process in humans is mentioned in Chinese medical texts dated to around the 13th century, including the Noon and Midnight Manual and the Mnemonic Rhyme to Aid in the Selection of Acu-points According to the Diurnal Cycle, the Day of the Month and the Season of the Year.

When did the Chinese use diurnal rhythms to remember Acu-points?
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A: 13th century

Problem: During World War II, the British at Bletchley Park achieved a number of successes at breaking encrypted German military communications. The German encryption machine, Enigma, was first attacked with the help of the electro-mechanical bombes. To crack the more sophisticated German Lorenz SZ 40/42 machine, used for high-level Army communications, Max Newman and his colleagues commissioned Flowers to build the Colossus. He spent eleven months from early February 1943 designing and building the first Colossus. After a functional test in December 1943, Colossus was shipped to Bletchley Park, where it was delivered on 18 January 1944 and attacked its first message on 5 February.
Who achieved success at cracking secret German military communications during World War II?
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Answer: , the British

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Swiss Federal budget had a size of 62.8 billion Swiss francs in 2010, which is an equivalent 11.35% of the country's GDP in that year; however, the regional (canton) budgets and the budgets of the municipalities are not counted as part of the federal budget and the total rate of government spending is closer to 33.8% of GDP. The main sources of income for the federal government are the value-added tax (33%) and the direct federal tax (29%) and the main expenditure is located in the areas of social welfare and finance & tax. The expenditures of the Swiss Confederation have been growing from 7% of GDP in 1960 to 9.7% in 1990 and to 10.7% in 2010. While the sectors social welfare and finance & tax have been growing from 35% in 1990 to 48.2% in 2010, a significant reduction of expenditures has been occurring in the sectors of agriculture and national defense; from 26.5% in to 12.4% (estimation for the year 2015).
What size was the Swiss Federal budget in 2010?
A: 62.8 billion Swiss francs

Context and question: In countries such as China and Vietnam, the transition to a market economy has been a major factor in a move toward the rule of law, because a rule of law is important to foreign investors and to economic development. It remains unclear whether the rule of law in countries like China and Vietnam will be limited to commercial matters or will spill into other areas as well, and if so whether that spillover will enhance prospects for related values such as democracy and human rights. The rule of law in China has been widely discussed and debated by both legal scholars and politicians in China.
What has influenced China and Vietnam to conform to the rule of law?
Answer: the transition to a market economy

Question: In September 1939, Britain entered the Second World War, which lasted until 1945. During the war, many of London's children were evacuated to avoid the frequent aerial bombing. The suggestion by senior politician Lord Hailsham that the two princesses should be evacuated to Canada was rejected by Elizabeth's mother, who declared, "The children won't go without me. I won't leave without the King. And the King will never leave." Princesses Elizabeth and Margaret stayed at Balmoral Castle, Scotland, until Christmas 1939, when they moved to Sandringham House, Norfolk. From February to May 1940, they lived at Royal Lodge, Windsor, until moving to Windsor Castle, where they lived for most of the next five years. At Windsor, the princesses staged pantomimes at Christmas in aid of the Queen's Wool Fund, which bought yarn to knit into military garments. In 1940, the 14-year-old Elizabeth made her first radio broadcast during the BBC's Children's Hour, addressing other children who had been evacuated from the cities. She stated: "We are trying to do all we can to help our gallant sailors, soldiers and airmen, and we are trying, too, to bear our share of the danger and sadness of war. We know, every one of us, that in the end all will be well."
Is there an answer to this question: In what month of 1945 did the Second World War end?

Answer: unanswerable

The category of Native American applies to the diverse group of people who lived in North America before European settlement. During the U.S. government's westward expansion, Native Americans were displaced from their land which had been their home for centuries. Instead, they were forced onto reservations which were far smaller and less productive. According to Brest, land belonging to Native Americans was reduced from 138 million acres in 1887 to 52 million acres in 1934. In 1990, the poverty rate for Native Americans was more than triple that of the whites and only 9.4% of Native Americans have completed a bachelor's degree as opposed to 25.2% of whites and 12.2% of African Americans.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Which groups can be categorized as Non-Native Americans?
Ah, so..
unanswerable