Question: In 1914, Japan joined the Entente during World War I and captured various German Empire colonies, including several in Micronesia. On September 29, 1914, Japanese troops occupied the Enewetak Atoll, and on September 30, 1914, the Jaluit Atoll, the administrative centre of the Marshall Islands. After the war, on June 28, 1919, Germany signed (under protest) the Treaty of Versailles. It renounced all of its Pacific possessions, including the Marshall Islands. On December 17, 1920, the Council of the League of Nations approved the South Pacific Mandate for Japan to take over all former German colonies in the Pacific Ocean located north of the Equator. The Administrative Centre of the Marshall Islands archipelago remained Jaluit.
Is there an answer to this question: When was the South Pacific Mandate for Japan approved?

Answer: December 17, 1920

Question: Since independence Namibia has successfully completed the transition from white minority apartheid rule to parliamentary democracy. Multiparty democracy was introduced and has been maintained, with local, regional and national elections held regularly. Several registered political parties are active and represented in the National Assembly, although the Swapo Party has won every election since independence. The transition from the 15-year rule of President Sam Nujoma to his successor Hifikepunye Pohamba in 2005 went smoothly.
Is there an answer to this question: How long did president Same Nujoma rule?

Answer: 15-year

Question: After many other more or less successful attempts with relatively weak rotating and reciprocating apparatus the Prussian Moritz von Jacobi created the first real rotating electric motor in May 1834 that actually developed a remarkable mechanical output power. His motor set a world record which was improved only four years later in September 1838 by Jacobi himself. His second motor was powerful enough to drive a boat with 14 people across a wide river. It was not until 1839/40 that other developers worldwide managed to build motors of similar and later also of higher performance.
Is there an answer to this question: What was Jacobi's improved motor used to not propel?

Answer: unanswerable

Question: Mac OS continued to evolve up to version 9.2.2, including retrofits such as the addition of a nanokernel and support for Multiprocessing Services 2.0 in Mac OS 8.6, though its dated architecture made replacement necessary. Initially developed in the Pascal programming language, it was substantially rewritten in C++ for System 7. From its beginnings on an 8 MHz machine with 128 KB of RAM, it had grown to support Apple's latest 1 GHz G4-equipped Macs. Since its architecture was laid down, features that were already common on Apple's competition, like preemptive multitasking and protected memory, had become feasible on the kind of hardware Apple manufactured. As such, Apple introduced Mac OS X, a fully overhauled Unix-based successor to Mac OS 9. OS X uses Darwin, XNU, and Mach as foundations, and is based on NeXTSTEP. It was released to the public in September 2000, as the Mac OS X Public Beta, featuring a revamped user interface called "Aqua". At US$29.99, it allowed adventurous Mac users to sample Apple's new operating system and provide feedback for the actual release. The initial version of Mac OS X, 10.0 "Cheetah", was released on March 24, 2001. Older Mac OS applications could still run under early Mac OS X versions, using an environment called "Classic". Subsequent releases of Mac OS X included 10.1 "Puma" (2001), 10.2 "Jaguar" (2002), 10.3 "Panther" (2003) and 10.4 "Tiger" (2005).
Is there an answer to this question: Upon release, what interface allowed Mac users to sample Apple's new operating system and provide feedback for the actual release?

Answer:
Aqua