Problem: Umayyad Caliphate:

Only Umayyad ruler (Caliphs of Damascus), Umar ibn Abd al-Aziz, is unanimously praised by Sunni sources for his devout piety and justice. In his efforts to spread Islam he established liberties for the Mawali by abolishing the jizya tax for converts to Islam. Imam Abu Muhammad Adbullah ibn Abdul Hakam stated that Umar ibn Abd al-Aziz also stopped the personal allowance offered to his relatives stating that he could only give them an allowance if he gave an allowance to everyone else in the empire. Umar ibn Abd al-Aziz was later poisoned in the year 720. When successive governments tried to reverse Umar ibn Abd al-Aziz's tax policies it created rebellion.

What was Umar ibn Ad al-Aziz's cause of death?
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A: poisoned

Problem: Different cultures have evolved various ways of creating clothes out of cloth. One approach simply involves draping the cloth. Many people wore, and still wear, garments consisting of rectangles of cloth wrapped to fit for example, the dhoti for men and the sari for women in the Indian subcontinent, the Scottish kilt or the Javanese sarong. The clothes may simply be tied up, as is the case of the first two garments; or pins or belts hold the garments in place, as in the case of the latter two. The precious cloth remains uncut, and people of various sizes or the same person at different sizes can wear the garment.
Pins are used to hold up what Indian governments
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Medill School of Journalism has produced notable journalists and political activists including 38 Pulitzer Prize laureates. National correspondents, reporters and columnists such as The New York Times's Elisabeth Bumiller, David Barstow, Dean Murphy, and Vincent Laforet, USA Today's Gary Levin, Susan Page and Christine Brennan, NBC correspondent Kelly O'Donnell, CBS correspondent Richard Threlkeld, CNN correspondent Nicole Lapin and former CNN and current Al Jazeera America anchor Joie Chen, and ESPN personalities Rachel Nichols, Michael Wilbon, Mike Greenberg, Steve Weissman, J. A. Adande, and Kevin Blackistone. The bestselling author of the A Song of Ice and Fire series, George R. R. Martin, earned a B.S. and M.S. from Medill. Elisabeth Leamy is the recipient of 13 Emmy awards and 4 Edward R. Murrow Awards.
Where did ABC correspondant attend school?
A: unanswerable

Context and question: In coniferous or softwood species the wood cells are mostly of one kind, tracheids, and as a result the material is much more uniform in structure than that of most hardwoods. There are no vessels ("pores") in coniferous wood such as one sees so prominently in oak and ash, for example.
What hardwood that starts with the letter "O" would have pores?
Answer: oak

Question: In September 1939, Britain and the self-governing Dominions, but not Ireland, declared war on Nazi Germany. George VI and his wife resolved to stay in London, despite German bombing raids. They officially stayed in Buckingham Palace throughout the war, although they usually spent nights at Windsor Castle. The first German raid on London, on 7 September 1940, killed about one thousand civilians, mostly in the East End. On 13 September, the King and Queen narrowly avoided death when two German bombs exploded in a courtyard at Buckingham Palace while they were there. In defiance, the Queen famously declared: "I am glad we have been bombed. It makes me feel we can look the East End in the face". The royal family were portrayed as sharing the same dangers and deprivations as the rest of the country. They were subject to rationing restrictions, and U.S. First Lady Eleanor Roosevelt remarked on the rationed food served and the limited bathwater that was permitted during a stay at the unheated and boarded-up Palace. In August 1942, the King's brother, Prince George, Duke of Kent, was killed on active service.
Is there an answer to this question: Against who did Britain declare war against in 1939?

Answer: Nazi Germany

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Having sold more than 300 million records worldwide, Madonna is recognized as the best-selling female recording artist of all time by Guinness World Records. The Recording Industry Association of America (RIAA) listed her as the best-selling female rock artist of the 20th century and the second best-selling female artist in the United States, with 64.5 million certified albums. According to Billboard, Madonna is the highest-grossing solo touring artist of all time, earning US $1.31 billion from her concerts since 1990. She was ranked at number two, behind only The Beatles, on the Billboard Hot 100 All-Time Top Artists, making her the most successful solo artist in the history of American singles chart. Madonna became one of the five founding members of the UK Music Hall of Fame and was inducted into the Rock and Roll Hall of Fame in her first year of eligibility.
How many certified albums does Madonna have?
A:
64.5 million