Problem: Tristan da Cunha:

The remote location of the islands makes transport to the outside world difficult. Lacking an airport, the islands can be reached only by sea. Fishing boats from South Africa service the islands eight or nine times a year. The RMS Saint Helena used to connect the main island to St Helena and South Africa once each year during its January voyage, but has done so only twice in the last few years, in 2006 and 2011. The wider territory has access to air travel with Ascension island served by RAF Ascension Island and a new airport, financed by the United Kingdom government, under construction on St Helena and due for completion in 2016. There is however no direct, regular service to Tristan da Cunha itself from either location. The harbour at Edinburgh of the Seven Seas is called Calshot Harbour, named after the place in Hampshire where the islanders temporarily stayed during the volcanic eruption.

How many times a year do airplanes service the area?
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A: unanswerable


Problem: The Germans expected to negotiate an end to the war but immediately ordered an advance on Paris; by 15 September Moltke issued the orders for an investment of Paris and on 20 September the encirclement was complete. Bismarck met Favre on 18 September at the Château de Ferrières and demanded a frontier immune to a French war of revenge, which included Strasbourg, Alsace and most the Moselle department in Lorraine of which Metz was the capital. In return for an armistice for the French to elect a National Assembly, Bismarck demanded the surrender of Strasbourg and the fortress city of Toul. To allow supplies into Paris, one of the perimeter forts had to be handed over. Favre was unaware that the real aim of Bismarck in making such extortionate demands was to establish a durable peace on the new western frontier of Germany, preferably by a peace with a friendly government, on terms acceptable to French public opinion. An impregnable military frontier was an inferior alternative to him, favoured only by the militant nationalists on the German side.
What did the Germans expect to negotiate?
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Answer: an end to the war


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Numerous modern mandolin makers build instruments that largely replicate the Gibson F-5 Artist models built in the early 1920s under the supervision of Gibson acoustician Lloyd Loar. Original Loar-signed instruments are sought after and extremely valuable. Other makers from the Loar period and earlier include Lyon and Healy, Vega and Larson Brothers. Some notable modern American carved mandolin manufacturers include, in addition to Kay, Gibson, Weber, Monteleone and Collings. Mandolins from other countries include The Loar (China), Santa, Rosa (China), Michael Kelly (Korea), Eastman (China), Kentucky (China), Heiden (Canada), Gilchrist (Australia) and Morgan Monroe (China).
Who are the other makers from the Loar period? 
A: Lyon and Healy, Vega and Larson Brothers


Context and question: During the summer months, it is common for temperatures to reach over 90 °F (32 °C), with an average of 106.5 days per year, including a majority from June to September, with a high of 90 °F or above and 4.6 days at or over 100 °F (38 °C). However, humidity usually yields a higher heat index. Summer mornings average over 90 percent relative humidity. Winds are often light in the summer and offer little relief, except in the far southeastern outskirts near the Gulf coast and Galveston. To cope with the strong humidity and heat, people use air conditioning in nearly every vehicle and building. In 1980, Houston was described as the "most air-conditioned place on earth". Officially, the hottest temperature ever recorded in Houston is 109 °F (43 °C), which was reached both on September 4, 2000 and August 28, 2011.
What weather factor provides little in heat relief in Houston?
Answer: Winds


Question: In 1989, Linda Ronstadt released Cry Like a Rainstorm, Howl Like the Wind, described by critics as "the first true Adult Contemporary album of the decade", featuring American soul singer Aaron Neville on several of the twelve tracks. The album was certified Triple Platinum in the United States alone and became a major success throughout the globe. The Grammy Award-winning singles, "Don't Know Much" and "All My Life", were both long-running #1 Adult Contemporary hits. Several additional singles from the disc made the AC Top 10 as well. The album won over many critics in the need to define AC, and appeared to change the tolerance and acceptance of AC music into mainstream day to day radio play.
Is there an answer to this question: Along with "Don't Know Much," what single won a Grammy?

Answer: "All My Life"


Pubertal development also affects circulatory and respiratory systems as an adolescents' heart and lungs increase in both size and capacity. These changes lead to increased strength and tolerance for exercise. Sex differences are apparent as males tend to develop "larger hearts and lungs, higher systolic blood pressure, a lower resting heart rate, a greater capacity for carrying oxygen to the blood, a greater power for neutralizing the chemical products of muscular exercise, higher blood hemoglobin and more red blood cells".
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How do a person's heart and lungs change during puberty?
Ah, so..
increase in both size and capacity