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.
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Question: Passage: At the census of 2000, there were 15,557 people, 6,123 households, and 4,365 families residing in the county. The population density was 46 people per square mile (18/km²). There were 7,348 housing units at an average density of 22 per square mile (8/km²). The racial makeup of the county was 97.36% Race (U.S. census), 0.49% Race (U.S. census) or Race (U.S. census), 0.71% Race (U.S. census), 0.26% Race (U.S. census), 0.02% Race (U.S. census), 0.12% from race (U.S. census), and 1.03% from two or more races. 0.47% of the population were Race (U.S. census) or Race (U.S. census) of any race.

Answer: How many households and families are in the county according to the census?


Question: Passage: Hoping to snap a six-game losing streak the Titans played on home ground for an AFC South rivalry rematch against the Texans. The Titans took the lead after QB Kerry Collins threw a 3 and a 1-yard TD pass to WR Nate Washington and to WR Justin Gage. This was followed by RB Chris Johnson getting an 11-yard TD run. The Texans got on the scoreboard after kicker Neil Rackers made a 37-yard field goal, but the Titans extended their lead after kicker Rob Bironas hit a 30-yard field goal. The lead was narrowed with QB Matt Schaub getting a 12-yard TD pass to WR Andre Johnson, but the Titans would pull away with RB Javon Ringer getting a 7-yard TD run. The lead was narrowed agan with Schaub throwing a 4-yard TD pass to WR Kevin Walter, but the Titans' defense prevented any more scoring chances.

Answer: How many field goals did the Texans make?


Question: Passage: A total of about 790,000 tickets were put on sale from February 2015 online, at the Singapore Indoor Stadium and at SingPost outlets. To encourage public participation in the games, it was announced on 28 January 2015 that 18 of the sports will be free for spectators, while the other 18 are kept at relatively affordable levels of between S$5 to S$20. By 15 April 2015 some sports such as swimming and fencing were selling fast, while silat and sepak takraw were much less popular. Organisers reported that ticket sales were pass 70% for most sports by 27 April, with fencing and swimming being the most popular at 85 and 70% tickets sold respectively, while rhythmic gymnastics, silat and wushu have also sold over 70%. Billiards and snooker, equestrian, sepak takraw, taekwondo, and artistic gymnastics have sold about half their tickets. Rugby and judo have sold 30%, while table tennis has sold only 20%. Priced between S$5 to S$20, priority sales for the opening and closing ceremonies tickets for those who registered theirs interests in 2014 began on 15 January 2015, while sales for the general public began on 22 January 2015. In February 2015, tickets to the opening ceremony were going at over seven times their original value on unauthorised websites, despite 40% of the tickets still available at that time. By March 2015, tickets to the opening ceremony were sold out.

Answer:
For how many months were opening ceremony tickets available to the general public before being sold out?