QUES: High-voltage AC overhead systems are not only for standard gauge national networks. The meter gauge Rhaetian Railway (RhB) and the neighbouring Matterhorn Gotthard Bahn (MGB) operate on 11 kV at 16.7 Hz frequency. Practice has proven that both Swiss and German 15 kV trains can operate under these lower voltages. The RhB started trials of the 11 kV system in 1913 on the Engadin line (St. Moritz-Scuol/Tarasp). The MGB constituents Furka-Oberalp-Bahn (FO) and Brig-Visp-Zermatt Bahn (BVZ) introduced their electric services in 1941 and 1929 respectively, adopting the already proven RhB system.
When did the RhB start trials of the 11 kV system on the Rhaetian line?

ANS: unanswerable

QUES: Many of the area's prominent museums are located in the historic cultural center neighborhood around Wayne State University and the College for Creative Studies. These museums include the Detroit Institute of Arts, the Detroit Historical Museum, Charles H. Wright Museum of African American History, the Detroit Science Center, as well as the main branch of the Detroit Public Library. Other cultural highlights include Motown Historical Museum, the Ford Piquette Avenue Plant museum (birthplace of the Ford Model T and the world's oldest car factory building open to the public), the Pewabic Pottery studio and school, the Tuskegee Airmen Museum, Fort Wayne, the Dossin Great Lakes Museum, the Museum of Contemporary Art Detroit (MOCAD), the Contemporary Art Institute of Detroit (CAID), and the Belle Isle Conservatory.
What is the name of the Detroit museum of African American history?

ANS: Charles H. Wright Museum of African American History

QUES: Today the boundaries of the Ukrainian language to the Russian language are still not drawn clearly, with an intermediate dialect between them, called Surzhyk, developing in Ukraine.
What is the name for the intermediate dialect formed between Surzhyk and the Russian language?

ANS: unanswerable

QUES: The Central Bank of Liberia is responsible for printing and maintaining the Liberian dollar, which is the primary form of currency in Liberia. Liberia is one of the world's poorest countries, with a formal employment rate of 15%. GDP per capita peaked in 1980 at US$496, when it was comparable to Egypt's (at the time). In 2011, the country's nominal GDP was US$1.154 billion, while nominal GDP per capita stood at US$297, the third-lowest in the world. Historically, the Liberian economy has depended heavily on foreign aid, foreign direct investment and exports of natural resources such as iron ore, rubber and timber.
What was the GDP per capita of Liberia in 2012?

ANS:
unanswerable