Problem: On the Origin of Species:

There were serious scientific objections to the process of natural selection as the key mechanism of evolution, including Karl von Nageli's insistence that a trivial characteristic with no adaptive advantage could not be developed by selection. Darwin conceded that these could be linked to adaptive characteristics. His estimate that the age of the Earth allowed gradual evolution was disputed by William Thomson (later awarded the title Lord Kelvin), who calculated that it had cooled in less than 100 million years. Darwin accepted blending inheritance, but Fleeming Jenkin calculated that as it mixed traits, natural selection could not accumulate useful traits. Darwin tried to meet these objections in the 5th edition. Mivart supported directed evolution, and compiled scientific and religious objections to natural selection. In response, Darwin made considerable changes to the sixth edition. The problems of the age of the Earth and heredity were only resolved in the 20th century.

What justification for his objections to the process of natural selection did Karl von Nagel give?
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A: insistence that a trivial characteristic with no adaptive advantage could not be developed by selection

Problem: SL Benfica, FC Porto, and Sporting CP are the largest sports clubs by popularity and by number of trophies won, often known as "os tres grandes" ("the big three"). They have won eight titles in the European UEFA club competitions, were present in many finals and have been regular contenders in the last stages almost every season. Other than football, many Portuguese sports clubs, including the "big three", compete in several other sports events with a varying level of success and popularity, these may include roller hockey, basketball, futsal, handball, and volleyball. The Portuguese Football Federation (FPF) Federacao Portuguesa de Futebol annually hosts the Algarve Cup, a prestigious women's football tournament that has been celebrated in the Algarvian part of Portugal.
Other than football, what other sports are popular in Portugal?
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Answer: roller hockey, basketball, futsal, handball, and volleyball

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Commercial radio stations broadcasting to the city include The Breeze, previously The Saint and currently broadcasting Hot adult contemporary music, Capital, previously Power FM and Galaxy and broadcasting popular music, Wave 105 and Heart Hampshire, the latter previously Ocean FM and both broadcasting adult contemporary music, and 106 Jack FM (www.jackradio.com), previously The Coast 106. In addition, Southampton University has a radio station called SURGE, broadcasting on AM band as well as through the web.
What's the new name of the station formerly known as The Saint?
A: The Breeze

Context and question: In 1854 president Antonio Lopez de Santa Anna enlarged the area of the Federal District almost eightfold from the original 220 to 1,700 km2 (80 to 660 sq mi), annexing the rural and mountainous areas to secure the strategic mountain passes to the south and southwest to protect the city in event of a foreign invasion. (The MexicanAmerican War had just been fought.) The last changes to the limits of the Federal District were made between 1898 and 1902, reducing the area to the current 1,479 km2 (571 sq mi) by adjusting the southern border with the state of Morelos. By that time, the total number of municipalities within the Federal District was twenty-two.
What is the current area of Mexico City?
Answer: 1,479 km2 (571 sq mi)

Question: The first overseas deployment of Canadian military forces occurred during the Second Boer War, when several units were raised to serve under British command. Similarly, when the United Kingdom entered into conflict with Germany in the First World War, Canadian troops were called to participate in European theatres. The Canadian Crown-in-Council then decided to send its forces into the Second World War, as well as the Korean War.
Is there an answer to this question: Who entered into conflict with the United Kingdom during the First World War?

Answer: unanswerable

Question: While there is some dispute as to the matter of influence, Popper had a long-standing and close friendship with economist Friedrich Hayek, who was also brought to the London School of Economics from Vienna. Each found support and similarities in the other's work, citing each other often, though not without qualification. In a letter to Hayek in 1944, Popper stated, "I think I have learnt more from you than from any other living thinker, except perhaps Alfred Tarski." Popper dedicated his Conjectures and Refutations to Hayek. For his part, Hayek dedicated a collection of papers, Studies in Philosophy, Politics, and Economics, to Popper, and in 1982 said, "...ever since his Logik der Forschung first came out in 1934, I have been a complete adherent to his general theory of methodology."
Is there an answer to this question: Who did Alfred Tarski say he had learned more from than any other living thinker?

Answer:
unanswerable