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: Richard Gabriel estimated that roughly 2,400 PLO fighters were killed during the war, of whom about 1,400 were killed throughout southern Lebanon and another 1,000 killed during the Siege of Beirut. Gabriel also estimated that between 5,000 and 8,000 civilians died during the war. Some later estimates have put the total figure at 18-19,000 killed and more than 30,000 wounded, most of them civilians. 80% of villages in South Lebanon were damaged, with some completely destroyed. The Israeli government maintained that about 1,000 Palestinian fighters and 800 Lebanese civilians died during the invasion, excluding the siege of Beirut. Kenneth Pollack estimated that 1,200 Syrian soldiers were killed and about 3,000 wounded during the war.

SOLUTION: How many more PLO fighters were killed throughout southern Lebanon than during the Siege of Beirut?

PROBLEM: Passage: In the USA an estimate was found of 32,500 children (<21 years) that suffer from major paediatric amputation, with 5,525 new cases each year, of which 3,315 congenital. Carr et al. (1998) investigated amputations caused by landmines for Afghanistan, Bosnia and Herzegovina, Cambodia and Mozambique among children (<14 years), showing estimates of respectively 4.7, 0.19, 1.11 and 0.67 per 1000 children. Mohan (1986) indicated in India a total of 424,000 amputees (23,500 annually), of which 10.3% had an onset of disability below the age of 14, amounting to a total of about 43,700 limb deficient children in India alone.

SOLUTION: How many amputees in India in all are not children?

PROBLEM: Passage: Between 1911 and 1912, over 1,000 Somalis from Mogadishu, the then capital of Italian Somaliland, served as combat units along with Eritrean and Italian soldiers in the Italo-Turkish War. Most of the troops stationed never returned home until they were transferred back to Italian Somaliland in preparation for the invasion of Ethiopia in 1935. The first disembarkation of Italian troops occurred on October 10. The Italian contingent of 20,000 troops was deemed sufficient to accomplish the conquest at the time. Tobruk, Derna and Khoms were easily conquered, but the same was not true for Benghazi. The first true setback for the Italian troops happened on October 23, when poor placement of the troops near Tripoli led them to be almost completely encircled by more mobile Arab cavalry, backed by some Turkish regular units. The attack was portrayed as a simple revolt by the Italian press, but it nearly annihilated much of the small Italian expeditionary corps. The corps was consequently enlarged to 100,000 men who had to face 20,000 Arabs and 8,000 Turks. The war turned into one of position.  Even some of the earliest examples of utilisation in modern warfare of armoured cars and air power by the Italian forces had little effect on the initial outcome. However, the war was notable for the first military use of heavier-than-air craft. Capitano Carlo Piazza flew the first military reconnaissance flight on 23 October 1911. A week later, Sottotenente Giulio Gavotti dropped four grenades on Taguira and Ain Zara in history's first aerial bombing.

SOLUTION:
Aerial bombing by who?