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: Real GDP per capita (measured in 2009 dollars) was $52,444 in 2017 and has been growing each year since 2010. It grew 3.0% per year on average in the 1960s, 2.1% in the 1970s, 2.4% in the 1980s, 2.2% in the 1990s, 0.7% in the 2000s, and 0.9% from 2010 to 2017. Reasons for slower growth since 2000 are debated by economists and may include aging demographics, slower population and growth in labor force, slower productivity growth, reduced corporate investment, greater income inequality reducing demand, lack of major innovations, and reduced labor power. The U.S. ranked 20th out of 220 countries in GDP per capita in 2017.  Among the modern U.S. Presidents, Bill Clinton had the highest cumulative percent real GDP increase during his two terms, Reagan second and Obama third.
How many countries were ahead of the United States out of 220 countries in GDP capita in 2017?

Passage: Concerned by the Burmese consolidation of Shan states and Laotian states, China launched four invasions of Burma between 1765 and 1769. At first, the Qianlong Emperor envisaged an easy war, and sent in only the Green Standard troops stationed in Yunnan. The Qing invasion came as the majority of Burmese forces were deployed in their latest invasion of Siam. Nonetheless, battle-hardened Burmese troops defeated the first two invasions of 1765-1766 and 1766-1767 at the border. The regional conflict now escalated to a major war that involved military manoeuvres nationwide in both countries. The third invasion  led by the elite Manchu Bannermen nearly succeeded, penetrating deep into central Burma within a few days' march from Ava. But the Bannermen of northern China could not cope with unfamiliar tropical terrains and lethal endemic diseases, and were driven back with heavy losses. After the close-call, Hsinbyushin redeployed his armies from Siam to the Chinese front. The fourth and largest invasion got bogged down at the frontier. With the Qing forces completely encircled, a truce was reached between the field commanders of the two sides in December 1769.
After how many Chinese invasions did the conflict escalate from a regional conflict into a major war?

Passage: Putting their four-game winning streak on the line, the Panthers flew to Paul Brown Stadium for a cat fight against the Cincinnati Bengals.  The Panthers stratched first as QB Jake Delhomme threw a 7-yard TD pass to TE Kris Mangum for the only score of the first quarter.  In the second quarter, both teams swapped TD blows, as Bengals QB Carson Palmer completed a 16-yard TD pass to TE Reggie Kelly, while Carolina RB Nick Goings caught a 20-yard TD pass.  Unfortunately, the Panthers would get shut out in the second half, as Cincinnati got the win with kicker Shayne Graham belting a 23-yard field in the third quarter, while Palmer threw a 1-yard TD pass to WR T. J. Houshmandzadeh.  With the loss, Carolina fell to 4-3.

How many yards was the shortest touchdown pass?