Problem: Pain:

The most reliable method for assessing pain in most humans is by asking a question: a person may report pain that cannot be detected by any known physiological measure. However, like infants (Latin infans meaning "unable to speak"), animals cannot answer questions about whether they feel pain; thus the defining criterion for pain in humans cannot be applied to them. Philosophers and scientists have responded to this difficulty in a variety of ways. Rene Descartes for example argued that animals lack consciousness and therefore do not experience pain and suffering in the way that humans do. Bernard Rollin of Colorado State University, the principal author of two U.S. federal laws regulating pain relief for animals, writes that researchers remained unsure into the 1980s as to whether animals experience pain, and that veterinarians trained in the U.S. before 1989 were simply taught to ignore animal pain. In his interactions with scientists and other veterinarians, he was regularly asked to "prove" that animals are conscious, and to provide "scientifically acceptable" grounds for claiming that they feel pain. Carbone writes that the view that animals feel pain differently is now a minority view. Academic reviews of the topic are more equivocal, noting that although the argument that animals have at least simple conscious thoughts and feelings has strong support, some critics continue to question how reliably animal mental states can be determined. The ability of invertebrate species of animals, such as insects, to feel pain and suffering is also unclear.

What is the word "infants" mean in Latin?
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A: unanswerable

Problem: On 26 July 1956, Nasser gave a speech in Alexandria announcing the nationalization of the Suez Canal Company as a means to fund the Aswan Dam project in light of the BritishAmerican withdrawal. In the speech, he denounced British imperialism in Egypt and British control over the canal company's profits, and upheld that the Egyptian people had a right to sovereignty over the waterway, especially since "120,000 Egyptians had died (sic)" building it. The motion was technically in breach of the international agreement he had signed with the UK on 19 October 1954, although he ensured that all existing stockholders would be paid off.
Who did Nasser claim would still be paid despite nationalization of the canal?
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Answer: existing stockholders

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Most analyses place Kerry's voting record on the left within the Senate Democratic caucus. During the 2004 presidential election he was portrayed as a staunch liberal by conservative groups and the Bush campaign, who often noted that in 2003 Kerry was rated the National Journal's top Senate liberal. However, that rating was based only upon voting on legislation within that past year. In fact, in terms of career voting records, the National Journal found that Kerry is the 11th most liberal member of the Senate. Most analyses find that Kerry is at least slightly more liberal than the typical Democratic Senator. Kerry has stated that he opposes privatizing Social Security, supports abortion rights for adult women and minors, supports same-sex marriage, opposes capital punishment except for terrorists, supports most gun control laws, and is generally a supporter of trade agreements. Kerry supported the North American Free Trade Agreement and Most Favored Nation status for China, but opposed the Central American Free Trade Agreement.[citation needed]
What trade agreement did Kerry oppose?
A: Central American Free Trade Agreement

Context and question: The calabash is the primary musical instrument of Guinea-Bissau, and is used in extremely swift and rhythmically complex dance music. Lyrics are almost always in Guinea-Bissau Creole, a Portuguese-based creole language, and are often humorous and topical, revolving around current events and controversies, especially AIDS.
What is the main controversy found in song lyrics?
Answer: AIDS

Question: The specifics of Paleo-Indian migration to and throughout the Americas, including the exact dates and routes traveled, provide the subject of ongoing research and discussion. According to archaeological and genetic evidence, North and South America were the last continents in the world with human habitation. During the Wisconsin glaciation, 5017,000 years ago, falling sea levels allowed people to move across the land bridge of Beringia that joined Siberia to north west North America (Alaska). Alaska was a glacial refugia because it had low snowfall, allowing a small population to exist. The Laurentide Ice Sheet covered most of North America, blocking nomadic inhabitants and confining them to Alaska (East Beringia) for thousands of years.
Is there an answer to this question: How Paleo-Indians migrated to the Americas is still a matter for what type of research?

Answer: ongoing

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Many long-distance migrants appear to be genetically programmed to respond to changing day length. Species that move short distances, however, may not need such a timing mechanism, instead moving in response to local weather conditions. Thus mountain and moorland breeders, such as wallcreeper Tichodroma muraria and white-throated dipper Cinclus cinclus, may move only altitudinally to escape the cold higher ground. Other species such as merlin Falco columbarius and Eurasian skylark Alauda arvensis move further, to the coast or towards the south. Species like the chaffinch are much less migratory in Britain than those of continental Europe, mostly not moving more than 5 km in their lives.
How far do British chaffinch more in their lives?
A:
5 km