TASK DEFINITION: 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.
PROBLEM: Passage: On December 1 the 3rd Army Group guerrillas cut the Lung-hai Railway near Luowang, Neihuanggi, and east and west of Lankao. They also cut the highways at Tung-hsu , Huaiyang and Luyi. Meanwhile, the 81st Division's main force attacked Kaifeng while some of its elements attacked Lanfeng. Lowang Railway station was taken on December 15 and the Division entered Kaifeng the next day, clearing the Japanese troops and burning warehouses and a Japanese headquarters there. Meanwhile, to the southeast 2nd Cavalry Corps moved east of Boxian, encircled and attacked Shangqiu from the east and overran an airfield and burned aviation fuel there. Another force intercepted and defeated relief forces moving west from Dangshan on the Lung-hai Railway. North of the Yellow River the 36th Army Group attacked. Its new 5th Corps on December 6 attacked elements of the Japanese 1st Independent Mixed Brigade north and south of Anyang and succeeded in destroying bridges along the roads at Chi, Chun, Tang-yin and Pao-lien Temple Station. On December 13 the 47th Corps cleared Taihang Mountain and cut the Tao-tsin Railroad, taking the rail stations at Po-shan and Chang-kou. The 9th Corps attacked elements of the Japanese 35th Division between Bo'ai and Jixian, cutting communications between them and attacking the defenders on the outskirts of Jixian and a strongpoint at Mucheng. Parts of the 47th Division and demolition teams broke into Jixian for half the day, attempting to clear it of enemy troops.

SOLUTION: How many bridges Anyang succeeded in destroying along the roads?

PROBLEM: Passage: On 24 August, Charles X Gustav joined Wittenberg's forces. The Polish king John II Casimir left Warsaw the same month to confront the Swedish army in the west, but after some skirmishes with the Swedish vanguard retreated southwards to Kraków. On 8 September Charles X Gustav occupied Warsaw, then turned south to confront the retreating Polish king. The kings met at the Battle of Żarnów on 16 September, which like the next encounter at the Battle of Wojnicz on 3 October was decided for Sweden. John II Casimir was exiled to Silesia while Kraków surrendered to Charles X Gustav on 19 October. On 20 October, a second treaty was ratified at Kėdainiai in the north. The Union of Kėdainiai unified Lithuania with Sweden, with Radziwiłł recognizing Charles X Gustav as Grand Duke of Lithuania. Over the following days, most of the Polish army surrendered to Sweden: on 26 October Koniecpolski surrendered with 5,385 men near Kraków, on 28 October Field Crown Hetman Stanisław Lanckoroński and Great Crown Hetman Stanisław "Rewera" Potocki surrendered with 10,000 men, and on 31 October the levy of Mazovia surrendered after the Battle of Nowy Dwór.

SOLUTION: About how many months do these events span?

PROBLEM: Passage: The Siege of St. Dizier took place in the summer of 1544, during the Italian War of 1542-46, when the Imperial army of Charles V attacked the French city of St. Dizier at the beginning of its advance into Champagne. The siege was already underway when Charles V himself arrived with an army of 14,100  on July 13. The next day an imperial commander, René of Châlon, Prince of Orange, was struck by a shot from the defenders, and died the next day with the Emperor by his bed . On July 23 French outposts near the besieged town were overrun, but a French army under the command of the Dauphin Henry maintained an observing position at Jalons. On August 17 the town surrendered. Charles elected not to attack the Dauphin's army and instead pressed on to Soissons.

SOLUTION:
How many days after Charles V arrived at the Siege with his army did the town surrender?