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.

Passage: The Easter Rising lasted from Easter Monday 24 April 1916 to Easter Saturday 29 April 1916. Annual commemorations, rather than taking place on 24-29 April, are typically based on the date of Easter, which is a moveable feast. For example, the annual military parade is on Easter Sunday; the date of coming into force of  the Republic of Ireland Act 1948 was symbolically chosen as Easter Monday  1949. The official programme of centenary events in 2016 climaxed from 25 March  to 2 April  with other events earlier and later in the year taking place on the calendrical anniversaries.
How many days did the Easter Rising last for?

Passage: In order to regain control of the custom duties, the emperor John VI Kantakouzenos made preparations to lower Constantinople's duties and most tariffs to undercut the Genoese in Galata. Still recovering from the civil war of 1341-1347, the emperor, with great difficulty, raised 50,000 hyperpyra from private sources  for a shipbuilding program for the expected war to come. When the tariffs and custom duties were finally lowered, merchant shipping coming through the strait bypassed Genoese Galata and diverted their ships across the Golden Horn to Byzantine Constantinople. The Genoese, financially hard-hit from this policy, declared war on the Empire, and in August 1348, a flotilla of ships sailed across the Horn and attacked the Byzantine fleet; despite their large scale preparations, the Byzantine fleet was destroyed by early 1349. The Byzantines retaliated by burning wharves and warehouses along the shore and catapulted stones and burning bales of hay into Galata, setting major parts of the city on fire. After several weeks of fighting, plenipotentiaries from Genoa came and negotiated a peace agreement. The Genoese agreed to pay a war indemnity of 100,000 hyperpyra and evacuated the land behind Galata which they illegally occupied; last, they promised never to attack Constantinople. In return the Byzantines surrendered nothing, but the Genoese custom duties remained in effect.
Approximately how many years did it take for the Byzantine fleet to be destroyed after August 1348?

Passage: In 1343 Robert I the Sage, King of Naples, died. His only son, Charles of Calabria, had died in 1328, leaving two daughters, one of which, Joan, had been married to Andrew, son of king Charles I of Hungary. During his time in Naples, Andrew's more refined wife developed a fierce hostility towards him. After her father's death, she received from the Avignonese Pope Clement VI the official investment of the Kingdom, which was then nominally a vassal of the Papal States. Andrew, who also sought the crown, received only the title of Duke of Calabria. On June 14, 1345 Clement, after a payment of 44,000 marks, agreed to yield to Andrew the title of king, but only as heir in case of Joan's death. Joan, who was suspecred of having an affair with Louis of Taranto, was at the time under the strong influence of the latter's mother, Catherine of Valois. On September 19, the day before the investiture of Andrew as King, a conjure led by Catherine's relatives and courtesans had Andrew assassinated during a hunt at Aversa. Bertramo del Balzo, together with Fra Moriale, from the Hospitallers, discovered and punished the assassins, but suspicion of the queen's involvement in the assassination had already become widespread. In May 1346 Andrew's brother, King Louis of Hungary, sent envoys to Clement to ask for her deposition. Unsatisfied by the Pope's reply, he mustered an army, planning to embark his troops in Zara. However, at the time the maritime city had rebelled against the Venetians, whose ships were blockading its port. After a failed attempt to free it, the King had to postpone his expedition, while Zara returned under Venice's aegis.

How many children did Robert I the Sage have?