Problem: Indigenous peoples of the Americas:

Various theories for the decline of the Native American populations emphasize epidemic diseases, conflicts with Europeans, and conflicts among warring tribes. Scholars now believe that, among the various contributing factors, epidemic disease was the overwhelming cause of the population decline of the American natives. Some believe that after first contacts with Europeans and Africans, Old World diseases caused the death of 90 to 95% of the native population of the New World in the following 150 years. Smallpox killed up to one third of the native population of Hispaniola in 1518. By killing the Incan ruler Huayna Capac, smallpox caused the Inca Civil War. Smallpox was only the first epidemic. Typhus (probably) in 1546, influenza and smallpox together in 1558, smallpox again in 1589, diphtheria in 1614, measles in 1618all ravaged the remains of Inca culture.

What disease killed almost a third of the population of Hispaniola in 1518?
---
A: Smallpox

Problem: In 1996, a surrogate character mechanism was implemented in Unicode 2.0, so that Unicode was no longer restricted to 16 bits. This increased the Unicode codespace to over a million code points, which allowed for the encoding of many historic scripts (e.g., Egyptian Hieroglyphs) and thousands of rarely used or obsolete characters that had not been anticipated as needing encoding. Among the characters not originally intended for Unicode are rarely used Kanji or Chinese characters, many of which are part of personal and place names, making them rarely used, but much more essential than envisioned in the original architecture of Unicode.
What are the extra Unicode characters called?
---
Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
London is the world's most expensive office market for the last three years according to world property journal (2015) report. As of 2015[update] the residential property in London is worth $2.2 trillion - same value as that of Brazil annual GDP. The city has the highest property prices of any European city according to the Office for National Statistics and the European Office of Statistics. On average the price per square metre in central London is 24,252 (April 2014). This is higher than the property prices in other G8 European capital cities; Berlin 3,306, Rome 6,188 and Paris 11,229.
What is the average property price per square meter in Berlin as of April 2014?
A: 3,306

Context and question: The reemergence of Cubism coincided with the appearance from about 191724 of a coherent body of theoretical writing by Pierre Reverdy, Maurice Raynal and Daniel-Henry Kahnweiler and, among the artists, by Gris, Leger and Gleizes. The occasional return to classicismfigurative work either exclusively or alongside Cubist workexperienced by many artists during this period (called Neoclassicism) has been linked to the tendency to evade the realities of the war and also to the cultural dominance of a classical or Latin image of France during and immediately following the war. Cubism after 1918 can be seen as part of a wide ideological shift towards conservatism in both French society and culture. Yet, Cubism itself remained evolutionary both within the oeuvre of individual artists, such as Gris and Metzinger, and across the work of artists as different from each other as Braque, Leger and Gleizes. Cubism as a publicly debated movement became relatively unified and open to definition. Its theoretical purity made it a gauge against which such diverse tendencies as Realism or Naturalism, Dada, Surrealism and abstraction could be compared.
Name the three artists who were in part resonsible for the reemergence of Cubism between 1917 and 1924.
Answer: Gris, Leger and Gleizes

Question: St. Barthelemy has a small airport known as Gustaf III Airport on the north coast of the island that is served by small regional commercial aircraft and charters. The nearest airport with a runway length sufficient to land a typical commercial jet airliner is on the neighboring island of Sint Maarten: Princess Juliana International Airport, which acts as a hub, providing connecting flights with regional carriers to St. Barthelemy. Several international airlines and domestic Caribbean airlines operate in this sector.
Is there an answer to this question: How many domestic Caribbean airlines are there?

Answer: unanswerable

Question: The ground-attack aircraft of the USAF are designed to attack targets on the ground and are often deployed as close air support for, and in proximity to, U.S. ground forces. The proximity to friendly forces require precision strikes from these aircraft that are not possible with bomber aircraft listed below. They are typically deployed as close air support to ground forces, their role is tactical rather than strategic, operating at the front of the battle rather than against targets deeper in the enemy's rear.
Is there an answer to this question: What part of a battle line are the precision strike aircraft of the USAF deployed?

Answer:
front of the battle