Problem: Frédéric Chopin:

Fryderyk may have had some piano instruction from his mother, but his first professional music tutor, from 1816 to 1821, was the Czech pianist Wojciech Żywny. His elder sister Ludwika also took lessons from Żywny, and occasionally played duets with her brother. It quickly became apparent that he was a child prodigy. By the age of seven Fryderyk had begun giving public concerts, and in 1817 he composed two polonaises, in G minor and B-flat major. His next work, a polonaise in A-flat major of 1821, dedicated to Żywny, is his earliest surviving musical manuscript.

During what years did Chopin receive instruction from  Żywny?
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A: 1816 to 1821


Problem: Downstream operations, which now also includes the chemicals business, generates a third of Shell's profits worldwide and is known for its global network of more than 40,000 petrol stations and its 47 oil refineries. The downstream business, which in some countries also included oil refining, generally included a retail petrol station network, lubricants manufacture and marketing, industrial fuel and lubricants sales and a host of other product/market sectors such as LPG and bitumen. The practice in Shell was that these businesses were essentially local and that they were best managed by local "operating companies" – often with middle and senior management reinforced by expatriates. In the 1990s, this paradigm began to change, and the independence of operating companies around the world was gradually reduced. Today, virtually all of Shell's operations in various businesses are much more directly managed from London and The Hague. The autonomy of "operating companies" has been largely removed, as more "global businesses" have been created.
When did Shell switch to treating businesses as local, independent companies?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
On May 30, 2006, Taylor Hicks was named American Idol, with Katharine McPhee the runner-up. "Do I Make You Proud" was released as Hicks' first single and McPhee's was "My Destiny".
Who was the winner for this season?
A: Taylor Hicks


Context and question: "At 11 am Petrus Canisius Van Lierde as Papal Sacristan was at the bedside of the dying pope, ready to anoint him. The pope began to speak for the very last time: "I had the great grace to be born into a Christian family, modest and poor, but with the fear of the Lord. My time on earth is drawing to a close. But Christ lives on and continues his work in the Church. Souls, souls, ut omnes unum sint."[c] Van Lierde then anointed his eyes, ears, mouth, hands and feet. Overcome by emotion, Van Lierde forgot the right order of anointing. John XXIII gently helped him before bidding those present a last farewell.
What was annointed by John XXIII?
Answer: unanswerable


Question: By that time, the majority of black people in the United States were native-born, so the use of the term "African" became problematic. Though initially a source of pride, many blacks feared that the use of African as an identity would be a hindrance to their fight for full citizenship in the US. They also felt that it would give ammunition to those who were advocating repatriating black people back to Africa. In 1835, black leaders called upon Black Americans to remove the title of "African" from their institutions and replace it with "Negro" or "Colored American". A few institutions chose to keep their historic names, such as the African Methodist Episcopal Church. African Americans popularly used the terms "Negro" or "colored" for themselves until the late 1960s.
Is there an answer to this question: Why did the use of "African" become an issue?

Answer: the majority of black people in the United States were native-born


QUES: While Japan had a large number of submarines, they did not make a significant impact on the war. In 1942, the Japanese fleet subs performed well, knocking out or damaging many Allied warships. However, Imperial Japanese Navy (and pre-war U.S.) doctrine stipulated that only fleet battles, not guerre de course (commerce raiding) could win naval campaigns. So, while the US had an unusually long supply line between its west coast and frontline areas, leaving it vulnerable to submarine attack, Japan used its submarines primarily for long-range reconnaissance and only occasionally attacked U.S. supply lines. The Japanese submarine offensive against Australia in 1942 and 1943 also achieved little.

When was the Japanese submarine offensive against Australia?
What is the answer?
ANS:
1942 and 1943