Problem: Videoconferencing:

One of the first demonstrations of the ability for telecommunications to help sign language users communicate with each other occurred when AT&T's videophone (trademarked as the "Picturephone") was introduced to the public at the 1964 New York World's Fair two deaf users were able to communicate freely with each other between the fair and another city. Various universities and other organizations, including British Telecom's Martlesham facility, have also conducted extensive research on signing via videotelephony. The use of sign language via videotelephony was hampered for many years due to the difficulty of its use over slow analogue copper phone lines, coupled with the high cost of better quality ISDN (data) phone lines. Those factors largely disappeared with the introduction of more efficient video codecs and the advent of lower cost high-speed ISDN data and IP (Internet) services in the 1990s.

Where was the Picturephone introduced in the 1990's?
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A: unanswerable

Problem: Twilight Princess was released to universal critical acclaim and commercial success. It received perfect scores from major publications such as 1UP.com, Computer and Video Games, Electronic Gaming Monthly, Game Informer, GamesRadar, and GameSpy. On the review aggregators GameRankings and Metacritic, Twilight Princess has average scores of 95% and 95 for the Wii version and scores of 95% and 96 for the GameCube version. GameTrailers in their review called it one of the greatest games ever created.
What was the reception of GameTrailers?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
When the Central Junta fell to the French, numerous new Juntas appeared all across the Americas, eventually resulting in a chain of newly independent countries stretching from Argentina and Chile in the south, to Mexico in the north. After the death of the king Ferdinand VII, in 1833, only Cuba and Puerto Rico remained under Spanish rule, until the SpanishAmerican War in 1898. Unlike the Spanish, the Portuguese did not divide their colonial territory in America. The captaincies they created were subdued to a centralized administration in Salvador (later relocated to Rio de Janeiro) which reported directly to the Portuguese Crown until its independence in 1822, becoming the Empire of Brazil.
After King Ferdinand died, who remained under Spanish rule?
A: Cuba and Puerto Rico

Context and question: This meant that nearly one-third of the U.S. lending mechanism was frozen and continued to be frozen into June 2009. According to the Brookings Institution, the traditional banking system does not have the capital to close this gap as of June 2009: "It would take a number of years of strong profits to generate sufficient capital to support that additional lending volume". The authors also indicate that some forms of securitization are "likely to vanish forever, having been an artifact of excessively loose credit conditions". While traditional banks have raised their lending standards, it was the collapse of the shadow banking system that is the primary cause of the reduction in funds available for borrowing.
What is likely to vanish forever, as a result of excessively loose credit conditions?
Answer: some forms of securitization

Question: Most of the residents are Marshallese, who are of Micronesian origin and migrated from Asia several thousand years ago. A minority of Marshallese have some recent Asian ancestry, mainly Japanese. About one-half of the nation's population lives on Majuro, the capital, and Ebeye, a densely populated island. The outer islands are sparsely populated due to lack of employment opportunities and economic development. Life on the outer atolls is generally traditional.
Is there an answer to this question: What is the ethnicity of most Marshall Islands residents?

Answer: Marshallese

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The state is well known for its handicrafts. The carpets, leather works, shawls, metalware, woodwork and paintings are worth appreciating. Pashmina shawls are a product that is highly in demand in Himachal and all over the country. Himachali caps are famous art work of the people. Extreme cold winters of Himachal necessitated wool weaving. Nearly every household in Himachal owns a pit-loom. Wool is considered as pure and is used as a ritual cloth. The well-known woven object is the shawl, ranging from fine pashmina to the coarse desar. Kullu is famous for its shawls with striking patterns and vibrant colours. Kangra and Dharamshala are famous for Kangra miniature paintings.
What is Kullu famous for?
A:
shawls with striking patterns and vibrant colours