Problem: In 2011, the foundation launched a program called "Reinvent the Toilet Challenge" with the aim to promote the development of innovations in toilet design to benefit the 2.5 billion people that do not have access to safe and effective sanitation. This program has generated significant interest of the mainstream media. It was complemented by a program called "Grand Challenges Explorations" (2011 to 2013 with some follow-up grants reaching until 2015) which involved grants of US$100,000 each in the first round. Both funding schemes explicitly excluded project ideas that relied on centralized sewerage systems or are not compatible with development country contexts.
What is the aim of reinvent the toilet
The answer is the following: to promote the development of innovations in toilet design to benefit the 2.5 billion people that do not have access to safe and effective sanitation

Problem: Crossing the Italian-Austrian border, the Brenner Pass separates the Otztal Alps and Zillertal Alps and has been in use as a trading route since the 14th century. The lowest of the Alpine passes at 985 m (3,232 ft), the Semmering crosses from Lower Austria to Styria; since the 12th century when a hospice was built there it has seen continuous use. A railroad with a tunnel 1 mile (1.6 km) long was built along the route of the pass in the mid-19th century. With a summit of 2,469 m (8,100 ft), the Great St. Bernard Pass is one of the highest in the Alps, crossing the Italian-Swiss border east of the Pennine Alps along the flanks of Mont Blanc. The pass was used by Napoleon Bonaparte to cross 40,000 troops in 1800. The Saint Gotthard Pass crosses from Central Switzerland to Ticino; in the late 19th century the 14 km (9 mi) long Saint Gotthard Tunnel was built connecting Lucerne in Switzerland, with Milan in Italy. The Mont Cenis pass has been a major commercial road between Western Europe and Italy. Now the pass has been supplanted by the Frejus Road and Rail tunnel. At 2,756 m (9,042 ft), the Stelvio Pass in northern Italy is one of the highest of the Alpine passes; the road was built in the 1820s. The highest pass in the alps is the col de l'Iseran in Savoy (France) at 2,770 m (9,088 ft).
Where is the highest point in the alps located?
The answer is the following: col de l'Iseran in Savoy (France)

Problem: Research has generally shown striking uniformity across different cultures in the motives behind teen alcohol use. Social engagement and personal enjoyment appear to play a fairly universal role in adolescents' decision to drink throughout separate cultural contexts. Surveys conducted in Argentina, Hong Kong, and Canada have each indicated the most common reason for drinking among adolescents to relate to pleasure and recreation; 80% of Argentinian teens reported drinking for enjoyment, while only 7% drank to improve a bad mood. The most prevalent answers among Canadian adolescents were to "get in a party mood," 18%; "because I enjoy it," 16%; and "to get drunk," 10%. In Hong Kong, female participants most frequently reported drinking for social enjoyment, while males most frequently reported drinking to feel the effects of alcohol.
What percentage of Argentenian teens reported drinking to improve a bad mood?
The answer is the following: 7%

Problem: In 1914, advertising executive Albert Lasker obtained a large block of the club's shares and before the 1916 season assumed majority ownership of the franchise. Lasker brought in a wealthy partner, Charles Weeghman, the proprietor of a popular chain of lunch counters who had previously owned the Chicago Whales of the short-lived Federal League. As principal owners, the pair moved the club from the West Side Grounds to the much newer Weeghman Park, which had been constructed for the Whales only two years earlier, where they remain to this day. The Cubs responded by winning a pennant in the war-shortened season of 1918, where they played a part in another team's curse: the Boston Red Sox defeated Grover Cleveland Alexander's Cubs four games to two in the 1918 World Series, Boston's last Series championship until 2004.
Who obtained a large block of the Cub's shares in 1914?
The answer is the following:
Albert Lasker