Problem: Republic of the Congo:

The economy is a mixture of village agriculture and handicrafts, an industrial sector based largely on petroleum, support services, and a government characterized by budget problems and overstaffing. Petroleum extraction has supplanted forestry as the mainstay of the economy. In 2008, oil sector accounted for 65% of the GDP, 85% of government revenue, and 92% of exports. The country also has large untapped mineral wealth.

What percentage of the Congo's gross domestic product did petroleum account for in 2008?
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A: 65%

Problem: The Ordovician Period started at a major extinction event called the Cambrian-Ordovician extinction events some time about 485.4 1.9 Ma. During the Ordovician the southern continents were collected into a single continent called Gondwana. Gondwana started the period in the equatorial latitudes and, as the period progressed, drifted toward the South Pole. Early in the Ordovician the continents Laurentia, Siberia and Baltica were still independent continents (since the break-up of the supercontinent Pannotia earlier), but Baltica began to move toward Laurentia later in the period, causing the Iapetus Ocean to shrink between them. Also, Avalonia broke free from Gondwana and began to head north toward Laurentia. The Rheic Ocean was formed as a result of this. By the end of the period, Gondwana had neared or approached the pole and was largely glaciated.
What contenent formed several southern coninents during the Ordovician?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In response to the 1966 ruling by the International Court of Justice, South-West Africa People's Organisation (SWAPO) military wing, People's Liberation Army of Namibia, a guerrilla group began their armed struggle for independence, but it was not until 1988 that South Africa agreed to end its occupation of Namibia, in accordance with a UN peace plan for the entire region. During the South African occupation of Namibia, white commercial farmers, most of whom came as settlers from South Africa and represented 0.2% of the national population, owned 74% of the arable land. Outside the central-southern area of Namibia (known as the "Police Zone" since the German era and which contained the main towns, industries, mines and best arable land), the country was divided into "homelands", the version of South African bantustan applied to Namibia, although only a few were actually established because indigenous Namibians often did not cooperate.
What percentage of the population Of South Africa was white people?
A: unanswerable

Context and question: The race was the most expensive for Congress in the country that year and four days before the general election, Durkin withdrew and endorsed Cronin, hoping to see Kerry defeated. The week before, a poll had put Kerry 10 points ahead of Cronin, with Dukin on 13%. In the final days of the campaign, Kerry sensed that it was "slipping away" and Cronin emerged victorious by 110,970 votes (53.45%) to Kerry's 92,847 (44.72%). After his defeat, Kerry lamented in a letter to supporters that "for two solid weeks, [The Sun] called me un-American, New Left antiwar agitator, unpatriotic, and labeled me every other 'un-' and 'anti-' that they could find. It's hard to believe that one newspaper could be so powerful, but they were." He later felt that his failure to respond directly to The Sun's attacks cost him the race.
What did Kerry think cost him the race against Cronin?
Answer: his failure to respond directly to The Sun's attacks

Question: Cotton is used to make a number of textile products. These include terrycloth for highly absorbent bath towels and robes; denim for blue jeans; cambric, popularly used in the manufacture of blue work shirts (from which we get the term "blue-collar"); and corduroy, seersucker, and cotton twill. Socks, underwear, and most T-shirts are made from cotton. Bed sheets often are made from cotton. Cotton also is used to make yarn used in crochet and knitting. Fabric also can be made from recycled or recovered cotton that otherwise would be thrown away during the spinning, weaving, or cutting process. While many fabrics are made completely of cotton, some materials blend cotton with other fibers, including rayon and synthetic fibers such as polyester. It can either be used in knitted or woven fabrics, as it can be blended with elastine to make a stretchier thread for knitted fabrics, and apparel such as stretch jeans.
Is there an answer to this question: What kinds of fabrics can be made from blended fibers?

Answer: knitted or woven

QUES: The period known as the Crusades, a series of religiously motivated military expeditions originally intended to bring the Levant back into Christian rule, began. Several Crusader states were founded in the eastern Mediterranean. These were all short-lived. The Crusaders would have a profound impact on many parts of Europe. Their Sack of Constantinople in 1204 brought an abrupt end to the Byzantine Empire. Though it would later be re-established, it would never recover its former glory. The Crusaders would establish trade routes that would develop into the Silk Road and open the way for the merchant republics of Genoa and Venice to become major economic powers. The Reconquista, a related movement, worked to reconquer Iberia for Christendom.

What was the name of another activity like the Crusades occurring in the eastern Mediterranean?
What is the answer?
ANS:
unanswerable