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: In 1642, Güshi Khan, founder of the Khoshut Khanate, overthrew the prince of Tsang and made the 5th Dalai Lama the highest spiritual and political authority in Tibet, establishing the regime known as Ganden Phodrang. Tsewang Rabtan invaded Tibet in 1717, deposed the pretender to the position of Dalai Lama of Lha-bzang Khan, the last ruler of the Khoshut Khanate, and killed Lha-bzang Khan and his entire family. They also viciously destroyed a small force in the Battle of the Salween River which the Kangxi Emperor of the Qing dynasty had sent to clear traditional trade routes in 1718. In response, an expedition sent by Kangxi Emperor, together with Tibetan forces under Polhané Sönam Topgyé of Tsang and Kangchennas , the governor of Western Tibet, expelled the Dzungars from Tibet in 1720. This began the Qing rule of Tibet, which lasted until the fall of the Qing dynasty in 1912.
How many years after Tsewang Rabtan invaded Tibet did the Battle of the Salween River take place?

Passage: After Napoleon's defeat in 1815, Europe's borders were redrawn at the Congress of Vienna. For the first time since the declaration of independence from Spain in 1581, the Dutch were reunited with the Southern Netherlands in a constitutional monarchy, the United Kingdom of the Netherlands. The union lasted just 15 years. In 1830, a revolution in the southern half of the country led to the de facto independence of the new state of Belgium. The bankrupt Dutch East India Company was liquidated on 1 January 1800, and its territorial possessions were nationalized as the Dutch East Indies.Anglo-Dutch rivalry in Southeast Asia continued to fester over the port of Singapore, which had been ceded to the British East India Company in 1819 by the sultan of Johore. The Dutch claimed that a treaty signed with the sultan's predecessor the year earlier had granted them control of the region. However, the impossibility of removing the British from Singapore, which was becoming an increasingly important centre of trade, became apparent to the Dutch, and the disagreement was resolved with the Anglo-Dutch Treaty of 1824. Under its terms, the Netherlands ceded Malacca and their bases in India to the British, and recognized the British claim to Singapore. In return, the British handed over Bencoolen and agreed not to sign treaties with rulers in the "islands south of the Straits of Singapore". Thus the archipelago was divided into two spheres of influence: a British one, on the Malay Peninsula, and a Dutch one in the East Indies.
How many years after Napoleon's defeat was the disagreement resolved with the Anglo-Dutch Treaty??

Passage: On 23 June 1596, an Ottoman Army marched from the city of Istanbul. Commanded by Sultan Mehmed III, the army marched through Edirne, Filibe , Sofia and Niš to arrive at Belgrade on 9 August. On 20 August, the army crossed the River Sava by bridge and entered the Austrian territory of Siren. A war council was called at Slankamen Castle, and it was decided that they would begin a siege on the Hungarian fort of Eger . The fort controlled the communication routes between Habsburg Austria and Transylvania, all of whom were in revolt against the Ottoman suzerainty. However, news soon arrived that the Austrians had besieged and succeeded in taking over the Castle of Hatvan and had killed all the Ottomans housed there, including the women and children. The Ottoman Army started a siege on the fort of Eger on 21 September 1596, and by 12 October the castle had capitulated. As a retaliation to the Hatvan castle massacre, the defenders of this castle were all executed. Not long after, Ottoman command received the report that a mixed army of Austrians and Transylvanians were advancing towards the Ottoman expeditionary force. A war council was conducted under Grand Vizier Damat Ibrahim Pasha. It was decided that the Ottoman Army should march out of the Erlau castle so as to meet the Austrians at a suitable battle terrain. The Sultan thought that the Ottoman army should disengage and return to Istanbul; it was with great difficulty that he was persuaded to engage the enemy forces. The most realistic troop strength figures seem to be 40,000-50,000 for the Christian and 80,000-100,000 for the Muslim army. The Christian army had 10,000 Austrians, 4,000 Germans, 3,000 reiters, 13,000 Hungarian light cavalry and 10,000 Transylvanians, for a total of 40,000 men.

Around how many days did these events span for?