Question: In Article 3 of the Treaty of San Francisco between the Allied Powers and Japan, which came into force in April 1952, the U.S. put the outlying islands of the Ryukyus, including the island of Okinawa—home to over 1 million Okinawans related to the Japanese—and the Bonin Islands, the Volcano Islands, and Iwo Jima into U.S. trusteeship. All these trusteeships were slowly returned to Japanese rule. Okinawa was returned on May 15, 1972, but the U.S. stations troops in the island's bases as a defense for Japan.
Is there an answer to this question: When did Article 2 of the Treaty of San Francisco come into effect?

Answer: unanswerable


Question: The output of goods and services produced by labor and property located in the United States—decreased at an annual rate of approximately 6% in the fourth quarter of 2008 and first quarter of 2009, versus activity in the year-ago periods. The U.S. unemployment rate increased to 10.1% by October 2009, the highest rate since 1983 and roughly twice the pre-crisis rate. The average hours per work week declined to 33, the lowest level since the government began collecting the data in 1964. With the decline of gross domestic product came the decline in innovation. With fewer resources to risk in creative destruction, the number of patent applications flat-lined. Compared to the previous 5 years of exponential increases in patent application, this stagnation correlates to the similar drop in GDP during the same time period.
Is there an answer to this question: The U.E. employment rate was 10.2% in October 2009, which was the highest rate since what year?

Answer: 1983


Question: In the closely contested 2000 election, the state played a pivotal role. Out of more than 5.8 million votes for the two main contenders Bush and Al Gore, around 500 votes separated the two candidates for the all-decisive Florida electoral votes that landed Bush the election win. Florida's felony disenfranchisement law is more severe than most European nations or other American states. A 2002 study in the American Sociological Review concluded that "if the state’s 827,000 disenfranchised felons had voted at the same rate as other Floridians, Democratic candidate Al Gore would have won Florida—and the presidency—by more than 80,000 votes."
Is there an answer to this question: Who didn't vote in 2004?

Answer: unanswerable


Question: Switzerland has one of the best environmental records among nations in the developed world; it was one of the countries to sign the Kyoto Protocol in 1998 and ratified it in 2003. With Mexico and the Republic of Korea it forms the Environmental Integrity Group (EIG). The country is heavily active in recycling and anti-littering regulations and is one of the top recyclers in the world, with 66% to 96% of recyclable materials being recycled, depending on the area of the country. The 2014 Global Green Economy Index ranked Switzerland among the top 10 green economies in the world.
Is there an answer to this question: What percentage of recyclable materials are being recycled in Switzerland?

Answer:
66% to 96%