Problem: Appalachian Mountains:

For a century, the Appalachians were a barrier to the westward expansion of the British colonies. The continuity of the mountain system, the bewildering multiplicity of its succeeding ridges, the tortuous courses and roughness of its transverse passes, a heavy forest, and dense undergrowth all conspired to hold the settlers on the seaward-sloping plateaus and coastal plains. Only by way of the Hudson and Mohawk Valleys, Cumberland Gap, the Wachesa Trail,[undue weight? – discuss] and round about the southern termination of the system were there easy routes to the interior of the country, and these were long closed by powerful Native American tribes such as the Iroquois, Creek, and Cherokee, among others. Expansion was also blocked by the alliances the British Empire had forged with Native American tribes, the proximity of the Spanish colonies in the south and French activity throughout the interior.

What were the name of the French tribes?
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A: unanswerable


Problem: Building first evolved out of the dynamics between needs (shelter, security, worship, etc.) and means (available building materials and attendant skills). As human cultures developed and knowledge began to be formalized through oral traditions and practices, building became a craft, and "architecture" is the name given to the most highly formalized and respected versions of that craft.
 What dynamic needs were the reason for building to be demolished?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Myers spoke next and continued to read the script. Once it was West's turn to speak again, he said, "George Bush doesn't care about black people." At this point, telethon producer Rick Kaplan cut off the microphone and then cut away to Chris Tucker, who was unaware of the cut for a few seconds. Still, West's comment reached much of the United States.
What happened after Kanye made his controversial statement?
A: Rick Kaplan cut off the microphone and then cut away to Chris Tucker


Context and question: Following the success of Le Journal de Mickey (1934–44), dedicated comics magazines and full-colour comics albums became the primary outlet for comics in the mid-20th century. As in the US, at the time comics were seen as infantile and a threat to culture and literacy; commentators stated that "none bear up to the slightest serious analysis",[c] and that comics were "the sabotage of all art and all literature".[d]
In the United States in the middle of the 20th century comics were seen as a risk to culture and what?
Answer: literacy


Question: A patent is a form of right granted by the government to an inventor, giving the owner the right to exclude others from making, using, selling, offering to sell, and importing an invention for a limited period of time, in exchange for the public disclosure of the invention. An invention is a solution to a specific technological problem, which may be a product or a process and generally has to fulfil three main requirements: it has to be new, not obvious and there needs to be an industrial applicability.:17
Is there an answer to this question: An invention is a solution to what type of problem?

Answer: technological


The element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth). German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corrosion-resistant zinc plating of iron (hot-dip galvanizing) is the major application for zinc. Other applications are in batteries, small non-structural castings, and alloys, such as brass. A variety of zinc compounds are commonly used, such as zinc carbonate and zinc gluconate (as dietary supplements), zinc chloride (in deodorants), zinc pyrithione (anti-dandruff shampoos), zinc sulfide (in luminescent paints), and zinc methyl or zinc diethyl in the organic laboratory.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What was zinc named after?
Ah, so..
Zinke