Problem: Pacific War:

On 6 August 1945, the U.S. dropped an atomic bomb on the Japanese city of Hiroshima in the first nuclear attack in history. In a press release issued after the atomic bombing of Hiroshima, Truman warned Japan to surrender or "...expect a rain of ruin from the air, the like of which has never been seen on this earth." Three days later, on 9 August, the U.S. dropped another atomic bomb on Nagasaki, the last nuclear attack in history. More than 140,000240,000 people died as a direct result of these two bombings. The necessity of the atomic bombings has long been debated, with detractors claiming that a naval blockade and aerial bombing campaign had already made invasion, hence the atomic bomb, unnecessary. However, other scholars have argued that the bombings shocked the Japanese government into surrender, with Emperor finally indicating his wish to stop the war. Another argument in favor of the atomic bombs is that they helped avoid Operation Downfall, or a prolonged blockade and bombing campaign, any of which would have exacted much higher casualties among Japanese civilians. Historian Richard B. Frank wrote that a Soviet invasion of Japan was never likely because they had insufficient naval capability to mount an amphibious invasion of Hokkaido.

What was the name of the blockade and bombing of Japan planed to make them surrender?
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A: Operation Downfall

Problem: In August 2008, West revealed plans to open 10 Fatburger restaurants in the Chicago area; the first was set to open in September 2008 in Orland Park. The second followed in January 2009, while a third location is yet to be revealed, although the process is being finalized. His company, KW Foods LLC, bought the rights to the chain in Chicago. Ultimately, in 2009, only two locations actually opened. In February 2011, West shut down the Fatburger located in Orland Park. Later that year, the remaining Beverly location also was shuttered.
How many restaurants did Kanye open?
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Answer: 2

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
After receiving his J.D. from Boston College Law School, Kerry worked in Massachusetts as an Assistant District Attorney. He served as Lieutenant Governor of Massachusetts under Michael Dukakis from 1983 to 1985 and was elected to the U.S. Senate in 1984 and was sworn in the following January. On the Senate Foreign Relations Committee, he led a series of hearings from 1987 to 1989 which were a precursor to the IranContra affair. Kerry was re-elected to additional terms in 1990, 1996, 2002 and 2008. In 2002, Kerry voted to authorize the President "to use force, if necessary, to disarm Saddam Hussein", but warned that the administration should exhaust its diplomatic avenues before launching war.
When was Kerry an Lt. Gov.?
A: from 1983 to 1985

Context and question: In Brazil, the Presbyterian Church of Brazil (Igreja Presbiteriana do Brasil) totals approximately 1,011,300 members; other Presbyterian churches (Independents, United, Conservatives, Renovated, etc.) in this nation have around 350,000 members. The Renewed Presbyterian Church in Brazil was influenced by the charismatic movement and has about 131000 members as of 2011. The Conservative Presbyterian Church was founded in 1940 and has eight presbyteries. The Fundamentalist Presbyterian church in Brazil was influenced by Karl McIntosh and the Bible Presbyterian church USA and has around 1800 members. The Independent Presbyterian Church in Brasil was founded in 1903 by pastor Pereira, has 500 congregations and 75000 members. The United Presbyterian Church in Brazil has around 4000 members. There are also ethnic Korean Presbyterian churches in the country. The Evangelical Reformed Church in Brazil has Dutch origin. The Reformed Churches in Brazil were recently founded by the Canadian Reformed Churches with the Reformed Church in the Netherlands (liberated).
When was Conservative Presbyterian Church formed?
Answer: 1940

Question: In 1998, Netscape launched what was to become the Mozilla Foundation in an attempt to produce a competitive browser using the open source software model. That browser would eventually evolve into Firefox, which developed a respectable following while still in the beta stage of development; shortly after the release of Firefox 1.0 in late 2004, Firefox (all versions) accounted for 7% of browser use. As of August 2011, Firefox has a 28% usage share.
Is there an answer to this question: Netscape wanted to have a competitive browser using what?

Answer: open source software model

Problem: Portugal:

Portugal has arguably the most liberal laws concerning possession of illicit drugs in the Western world. In 2001, Portugal decriminalized possession of effectively all drugs that are still illegal in other developed nations including, but not limited to, cannabis, cocaine, heroin, and LSD. While possession is legal, trafficking and possession of more than "10 days worth of personal use" are still punishable by jail time and fines. People caught with small amounts of any drug are given the choice to go to a rehab facility, and may refuse treatment without consequences. Despite criticism from other European nations, who stated Portugal's drug consumption would tremendously increase, overall drug use has declined along with the number of HIV infection cases, which had dropped 50 percent by 2009. Drug use among 16- to 18-year-olds also declined, however the use of marijuana rose only slightly among that age group.

By 2009, by how much had the rate of HIV infection decreased?
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A:
50 percent