Problem: Some 97 percent of male BYU graduates and 32 percent of female graduates took a hiatus from their undergraduate studies at one point to serve as LDS missionaries. In October 2012, the LDS Church announced at its general conference that young men could serve a mission after they turn 18 and have graduated from high school, rather than after age 19 under the old policy. Many young men would often attend a semester or two of higher education prior to beginning missionary service. This policy change will likely impact what has been the traditional incoming freshman class at BYU. Female students may now begin their missionary service anytime after turning 19, rather than age 21 under the previous policy. For males, a full-time mission is two years in length, and for females it lasts 18 months.
How long is a full-time mission for males?
The answer is the following: two years

Problem: Just as artist and inventor Leonardo da Vinci – partaking of the zeitgeist though not himself a humanist – advocated study of human anatomy, nature, and weather to enrich Renaissance works of art, so Spanish-born humanist Juan Luis Vives (c. 1493–1540) advocated observation, craft, and practical techniques to improve the formal teaching of Aristotelian philosophy at the universities, helping to free them from the grip of Medieval Scholasticism. Thus, the stage was set for the adoption of an approach to natural philosophy, based on empirical observations and experimentation of the physical universe, making possible the advent of the age of scientific inquiry that followed the Renaissance.
Where did this initiate?
The answer is the following: universities

Problem: In the UK and Ireland, "exhibition match" and "friendly match" refer to two different types of matches. The types described above as friendlies are not termed exhibition matches, while annual all-star matches such as those held in the US Major League Soccer or Japan's Japanese League are called exhibition matches rather than friendly matches. A one-off match for charitable fundraising, usually involving one or two all-star teams, or a match held in honor of a player for contribution to his/her club, may also be described as exhibition matches but they are normally referred to as charity matches and testimonial matches respectively.
What are 'friendlies' for charity usually called in the UK?
The answer is the following: charity matches

Problem: The expansive area northwest of the city limits is diverse, ranging from the rural communities of Catalina and parts of the town of Marana, the small suburb of Picture Rocks, the affluent town of Oro Valley in the western foothills of the Santa Catalina Mountains, and residential areas in the northeastern foothills of the Tucson Mountains. Continental Ranch (Marana), Dove Mountain (Marana), and Rancho Vistoso (Oro Valley) are all masterplanned communities located in the Northwest, where thousands of residents live.
Where is Oro Valley?
The answer is the following:
in the western foothills of the Santa Catalina Mountains