Problem: United States of America: The torch relay's North American leg occurred in San Francisco, California on April 9. On the day of the relay officials diverted the torch run to an unannounced route. The start was at McCovey Cove, where Norman Bellingham of the U.S. Olympic Committee gave the torch to the first torchbearer, Chinese 1992 Olympic champion swimmer Lin Li. The planned closing ceremony at Justin Herman Plaza was cancelled and instead, a ceremony was held at San Francisco International Airport, where the torch was to leave for Buenos Aires. The route changes allowed the run to avoid large numbers of China supporters and protesters against China. As people found out there would be no closing ceremony at Justin Herman Plaza, there were angry reactions. One demonstrator was quoted as saying that the route changes were an effort to "thwart any organized protest that had been planned." San Francisco Board of Supervisors President Aaron Peskin, a critic of Mayor Gavin Newsom, said that it was a "cynical plan to please the Bush State Department and the Chinese government because of the incredible influence of money." Newsom, on the other hand, said he felt it was in "everyone's best interest" and that he believed people had been "afforded the right to protest and support the torch" despite the route changes. Peter Ueberroth, head of the U.S. Olympic Committee, praised the route changes, saying, "The city of San Francisco, from a global perspective, will be applauded." People who saw the torch were surprised and cheered as shown from live video of CBS and NBC. The cost to the city for hosting the event was reported to be USD $726,400, nearly half of which has been recovered by private fundraising. Mayor Gavin Newsom said that "exponential" costs associated with mass arrests were avoided by his decision to change the route in consultation with police chief Heather Fong.
What was the date of the relay in the United States?
The answer is the following: April 9.

Problem: Botany was greatly stimulated by the appearance of the first "modern" text book, Matthias Schleiden's Grundzuge der Wissenschaftlichen Botanik, published in English in 1849 as Principles of Scientific Botany. Schleiden was a microscopist and an early plant anatomist who co-founded the cell theory with Theodor Schwann and Rudolf Virchow and was among the first to grasp the significance of the cell nucleus that had been described by Robert Brown in 1831. In 1855, Adolf Fick formulated Fick's laws that enabled the calculation of the rates of molecular diffusion in biological systems.
What was Schleiden's profession?
The answer is the following: microscopist

Problem: In 1854 president Antonio Lopez de Santa Anna enlarged the area of the Federal District almost eightfold from the original 220 to 1,700 km2 (80 to 660 sq mi), annexing the rural and mountainous areas to secure the strategic mountain passes to the south and southwest to protect the city in event of a foreign invasion. (The MexicanAmerican War had just been fought.) The last changes to the limits of the Federal District were made between 1898 and 1902, reducing the area to the current 1,479 km2 (571 sq mi) by adjusting the southern border with the state of Morelos. By that time, the total number of municipalities within the Federal District was twenty-two.
What is the current area of Mexico City?
The answer is the following: 1,479 km2 (571 sq mi)

Problem: On November 6, 2006, Microsoft announced the Xbox Video Marketplace, an exclusive video store accessible through the console. Launched in the United States on November 22, 2006, the first anniversary of the Xbox 360's launch, the service allows users in the United States to download high-definition and standard-definition television shows and movies onto an Xbox 360 console for viewing. With the exception of short clips, content is not currently available for streaming, and must be downloaded. Movies are also available for rental. They expire in 14 days after download or at the end of the first 24 hours after the movie has begun playing, whichever comes first. Television episodes can be purchased to own, and are transferable to an unlimited number of consoles. Downloaded files use 5.1 surround audio and are encoded using VC-1 for video at 720p, with a bitrate of 6.8 Mbit/s. Television content is offered from MTV, VH1, Comedy Central, Turner Broadcasting, and CBS; and movie content is Warner Bros., Paramount, and Disney, along with other publishers.
What resolution are videos sold through this service?
The answer is the following:
720p