Q: In 212 BC, the Emperor Qin Shi Huang commanded all books in the Qin Empire other than officially sanctioned ones be burned. This decree was not universally obeyed, but as a consequence of this order little is known about ancient Chinese mathematics before this date. After the Burning of books and burying of scholars of 212 BC, the Han dynasty (202 BC–220 AD) produced works of mathematics which presumably expanded on works that are now lost. The most important of these is The Nine Chapters on the Mathematical Art, the full title of which appeared by AD 179, but existed in part under other titles beforehand. It consists of 246 word problems involving agriculture, business, employment of geometry to figure height spans and dimension ratios for Chinese pagoda towers, engineering, surveying, and includes material on right triangles. It created mathematical proof for the Pythagorean theorem, and a mathematical formula for Gaussian elimination. The treatise also provides values of π, which Chinese mathematicians originally approximated as 3 until Liu Xin (scholar) (d. 23 AD) provided a figure of 3.1457 and subsequently Zhang Heng (78-139) approximated pi as 3.1724, as well as 3.162 by taking the square root of 10. Liu Hui commented on the Nine Chapters in the 3rd century AD and Liu Huis π algorithm accurate to 5 decimal places (i.e. 3.14159). Though more of a matter of computational stamina than theoretical insight, in the 5th century AD Zu Chongzhi computed Milü to seven decimal places (i.e. 3.141592), which remained the most accurate value of π for almost the next 1000 years. He also established a method which would later be called Cavalieris principle to find the volume of a sphere.
How many people changed the values of pi?
A: 2

Q: For the fourth time in as many trips to the western United States, the Jets lost to the woeful Seahawks in Mike Holmgren's final home game as  the team's head coach. The loss dropped the Jets to 9-6 and out of first place in the AFC East. Jay Feely put the Jets on the board with a field goal eight minutes into the game and the lead held for most of the remainder of the first half. Seattle scored with thirty one seconds remaining in the half on a Seneca Wallace touchdown pass. Olindo Mare kicked two field goals in the second half, including one with 1:47 remaining to clinch victory for Seattle. Brett Favre was held without a touchdown pass for the Jets and threw two interceptions, and Thomas Jones was held to 67 yards. For the Seahawks Maurice Morris rushed for 116 yards on 29 carries and Wallace finished with 175 yards passing and his second-quarter touchdown.
How many times in a row did the Jets lose to the Seahawks?
A: 4

Q: Vest Recklinghausen was first mentioned in 1228 as a fiefdom of the Archbishopric of Cologne and thus it belonged to the Electoral Rhenish Circle. The administrator lived in castle Westerholt, located in Herten. From 1446 to 1576 it was used as collateral, first pawned to the lords of Gemen  and after 1492 to the Lords of Schauenburg and Holstein-Pinneberg, who pawned the territory back to the Archbishops of Cologne in 1576. During the Cologne War , Vest Recklinghausen was occupied and sacked several times by troops from both sides of the conflict. In 1583, although much of the territory was already Protestant, the Calvinist Elector of Cologne, Gebhard, Truchsess von Waldburg and his wife, Agnes, ordered the destruction of the icons and decorative elements of the churches. In 1584, the territory was sacked again, this time by the competing archbishop, Ernst of Bavaria. In 1586, the territory was invaded by Martin Schenck and Hermann Cloedt, who caused great damage to the farms and small villages, and were besieged by Claude de Berlaymont, also known as Haultpenne, in the city of Werl.
How many years was castle Westerholt used as collateral?
A: 130

Q: After a tough home game against the Cowboys, the Steelers traveled to Cleveland for Game 1 against the Browns. In the first half, it was all Steelers starting in the first quarter when Chris Boswell made a 32-yard field goal for a 3-0 lead. They would increase their lead in the second quarter when Boswell made a 33-yard field goal followed up by Le'Veon Bell running for a 1-yard touchdown with a successful two-point conversion to make it 6-0 and then 14-0 at halftime. In the third quarter, the Browns finally got on the board as Cody Parkey made a 24-yard field goal to make the score 14-3. The Steelers however pulled away as Boswell kicked a 22-yard field goal making it 17-3. In the fourth quarter, the Browns drew closer as backup QB Josh McCown threw a 14-yard touchdown pass to Gary Barnidge (with a failed PAT) to make the score 17-9. However, later on, the Steelers sealed the game when Javon Hargrave recovered a fumble in the end zone to make the final score 24-9. With their four-game losing streak coming to a stop, the Steelers improved to 5-5. Also, they move back into a tie on top of the AFC North due to the Ravens' loss to the Cowboys. The defense&#8212;which had only 13 sacks going into this game&#8212;managed to get eight in this game alone, as Cody Kessler and Josh McCown each got sacked four times.
How many points were scored in the first half?
A:
14