This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning).
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.

[Q]: Passage: Over the years the city has been home to people of various ethnicities, resulting in a range of different traditions and cultural practices. In one decade, the population increased from 427,045 in 1991 to 671,805 in 2001. The population was projected to reach 915,071 in 2011 and 1,319,597 by 2021. To keep up this population growth, the KMC-controlled area of has expanded to in 2001. With this new area, the population density which was 85 in 1991 is still 85 in 2001; it is likely to jump to 111 in 2011 and 161 in 2021.
[A]: How many more people populated the city in 2001 than in 1991?

[Q]: Passage: The Toi invasion was the invasion of northern Kyushu by Jurchen pirates in 1019. At the time, Toi meant "barbarian" in the Korean language. The Toi pirates sailed with about 50 ships from direction of Goryeo, then assaulted Tsushima and Iki, starting 27 March 1019. After the Iki Island garrison comprising 147 soldiers was wiped out, the pirates has proceed to Hakata Bay. For a week, using Noko Island in the Hakata Bay as a base, they sacked villages and kidnapped over 1,000 Japanese, mostly women and young girls, for use as slaves. The Dazaifu, the administrative center of Kyushu, then raised an army and successfully drove the pirates away. During the second failed raid to Matsuura 13 April 1019, three enemies were captured by the Japanese army. They were identified as Koreans. They said that they had guarded the borderland but had been captured by the Toi. However, this was unlikely, and the Japanese officers suspected them because there had been Korean pirates attacking Japan coasts during the Silla period. A few months later, the Goryeo delegate Jeong Jaryang reported that Goryeo forces attacked the pirates off Wonsan and rescued about 260 Japanese. The Korean government then repatriated them to Japan where they were thanked by the Dazaifu and given rewards. There remain detailed reports by two captive women, Kura no Iwame and Tajihi no Akomi. These Jurchen pirates lived in what is today Hamgyongdo, North Korea.
[A]: Did the second raid to Matsuura succeed?

[Q]: Passage: The Chargers host the Ravens in their home debut in San Diego after a narrow escape in the second of two AFL 50th Anniversary-themed division rivalry Monday Night matchups against the Raiders in Oakland. The Chargers jumped out to an early lead when a blown coverage led to an easy 81-yard touchdown pass from Philip Rivers to Darren Sproles. The Ravens answered with Willis McGahee on a 5-yard touchdown run, but the Chargers would increase their advantage on a Nate Kaeding field goal. The offensive display would continue in the second quarter, but the Ravens touchdowns were only answered by Chargers field goals. McGahee found the end zone a second time to take the lead 14 - 10, but the Chargers pulled within one on the second Kaeding field goal. Flacco then found Kelley Washington for Flacco's first touchdown pass of the day and Washington's first touchdown reception as a Raven just inside the 2-minute halftime warning. Rivers led the Chargers down the field in an attempt to answer, but the drive stalled and had to settle for the third of four Kaeding field goals. In the second half, both defenses stiffened. Todd Heap would get his second touchdown catch of the season from Flacco from 9 yards out, but the Chargers responded with a 35-yard touchdown catch from Vincent Jackson. Late in the fourth quarter, interceptions from Flacco and Rivers led to trading field goals. After a Ravens punt, Rivers led the Chargers all the way down to the Ravens 15. The Chargers went for the first down on fourth down to go for the win, but Sproles was stopped by Ray Lewis five yards in the backfield, allowing the Ravens to run the clock out. With the win, not only do the Ravens improve to 2-0, the Ravens take sole possession of first place in the AFC North with the Steelers' loss to the Bears.
[A]:
How many field goals did Nate Kaeding make in the second half?