Question: Uranium was also used in photographic chemicals (especially uranium nitrate as a toner), in lamp filaments for stage lighting bulbs, to improve the appearance of dentures, and in the leather and wood industries for stains and dyes. Uranium salts are mordants of silk or wool. Uranyl acetate and uranyl formate are used as electron-dense "stains" in transmission electron microscopy, to increase the contrast of biological specimens in ultrathin sections and in negative staining of viruses, isolated cell organelles and macromolecules.
Try to answer this question if possible: Along with uranyl formate, what product of uranium is used in transmission proton microscopy?
Answer: unanswerable
Question: Forty of the city's theaters, with more than 500 seats each, are collectively known as Broadway, after the major thoroughfare that crosses the Times Square Theater District, sometimes referred to as "The Great White Way". According to The Broadway League, Broadway shows sold approximately US$1.27 billion worth of tickets in the 2013–2014 season, an 11.4% increase from US$1.139 billion in the 2012–2013 season. Attendance in 2013–2014 stood at 12.21 million, representing a 5.5% increase from the 2012–2013 season's 11.57 million.
Try to answer this question if possible: What is the nickname of the Times Square Theater District?
Answer: The Great White Way
Question: The term "Gothic architecture" originated as a pejorative description. Giorgio Vasari used the term "barbarous German style" in his Lives of the Artists to describe what is now considered the Gothic style, and in the introduction to the Lives he attributes various architectural features to "the Goths" whom he holds responsible for destroying the ancient buildings after they conquered Rome, and erecting new ones in this style. At the time in which Vasari was writing, Italy had experienced a century of building in the Classical architectural vocabulary revived in the Renaissance and seen as evidence of a new Golden Age of learning and refinement.
Try to answer this question if possible: In what period was the Classical architecture vocabulary revived? 
Answer: the Renaissance
Question: Only a few towns in western Libya—such as Bani Walid, Sebha and Sirte—remained Gaddafist strongholds. Retreating to Sirte after Tripoli's fall, Gaddafi announced his willingness to negotiate for a handover to a transitional government, a suggestion rejected by the NTC. Surrounding himself with bodyguards, he continually moved residences to escape NTC shelling, devoting his days to prayer and reading the Qur'an. On 20 October, Gaddafi broke out of Sirte's District 2 in a joint civilian-military convoy, hoping to take refuge in the Jarref Valley. At around 8.30am, NATO bombers attacked, destroying at least 14 vehicles and killing at least 53. The convoy scattered, and Gaddafi and those closest to him fled to a nearby villa, which was shelled by rebel militia from Misrata. Fleeing to a construction site, Gaddafi and his inner cohort hid inside drainage pipes while his bodyguards battled the rebels; in the conflict, Gaddafi suffered head injuries from a grenade blast while defence minister Abu-Bakr Yunis Jabr was killed.
Try to answer this question if possible: About how many people were killed in the October 20 bombing of Gaddafi's convoy?
Answer:
53