Question: Muslim engineers in the Islamic world made a number of innovative industrial uses of hydropower, and early industrial uses of tidal power and wind power, fossil fuels such as petroleum, and early large factory complexes (tiraz in Arabic). The industrial uses of watermills in the Islamic world date back to the 7th century, while horizontal-wheeled and vertical-wheeled water mills were both in widespread use since at least the 9th century. A variety of industrial mills were being employed in the Islamic world, including early fulling mills, gristmills, hullers, sawmills, ship mills, stamp mills, steel mills, sugar mills, tide mills and windmills. By the 11th century, every province throughout the Islamic world had these industrial mills in operation, from al-Andalus and North Africa to the Middle East and Central Asia. Muslim engineers also invented crankshafts and water turbines, employed gears in mills and water-raising machines, and pioneered the use of dams as a source of water power, used to provide additional power to watermills and water-raising machines. Such advances made it possible for industrial tasks that were previously driven by manual labour in ancient times to be mechanized and driven by machinery instead in the medieval Islamic world. The transfer of these technologies to medieval Europe had an influence on the Industrial Revolution.
Try to answer this question if possible: Who had watermills by the 1100's?
Answer: unanswerable
Question: At the end of the third quarter in 2008, Florida had the highest mortgage delinquency rate in the country, with 7.8% of mortgages delinquent at least 60 days. A 2009 list of national housing markets that were hard hit in the real estate crash included a disproportionate number in Florida. The early 21st-century building boom left Florida with 300,000 vacant homes in 2009, according to state figures. In 2009, the US Census Bureau estimated that Floridians spent an average 49.1% of personal income on housing-related costs, the third highest percentage in the country.
Try to answer this question if possible: What state was the fourth highest percentage of housing related costs in the country? 
Answer: unanswerable
Question: Campus Martius, a reconfiguration of downtown's main intersection as a new park was opened in 2004. The park has been cited as one of the best public spaces in the United States. The city's riverfront has been the focus of redevelopment, following successful examples of other older industrial cities. In 2001, the first portion of the International Riverfront was completed as a part of the city's 300th anniversary celebration, with miles of parks and associated landscaping completed in succeeding years. In 2011, the Port Authority Passenger Terminal opened with the river walk connecting Hart Plaza to the Renaissance Center.
Try to answer this question if possible: In which year did Detroit celebrate it's 300th anniversary?
Answer: 2001
Question: The TV rights agreement between the Premier League and Sky has faced accusations of being a cartel, and a number of court cases have arisen as a result. An investigation by the Office of Fair Trading in 2002 found BSkyB to be dominant within the pay TV sports market, but concluded that there were insufficient grounds for the claim that BSkyB had abused its dominant position. In July 1999 the Premier League's method of selling rights collectively for all member clubs was investigated by the UK Restrictive Practices Court, who concluded that the agreement was not contrary to the public interest.
Try to answer this question if possible: What did the Office of Fair Trading decide regarding the claim that Sky abuses their position in 2002.
Answer:
Office of Fair Trading in 2002 found BSkyB to be dominant within the pay TV sports market, but concluded that there were insufficient grounds for the claim