Problem: In Lithuania Propria and in Samogitia prior to the creation of the Kingdom of Lithuania by Mindaugas, nobles were named die beste leuten in sources that were written in German language. In the Lithuanian language nobles were named ponai. The higher nobility were named 'kunigai' or 'kunigaikščiai' (dukes)—i.e., loanword from Scandinavic konung. They were the established local leaders and warlords. During the development of the state they gradually became subordinated to higher dukes, and later to the King of Lithuania. Because of expansion of Lithuanian duchy into lands of Ruthenia in the mid of 14th century a new term appeared to denominate nobility bajorai—from Ruthenian (modern Ukrainian and Belarusian languages) бояре. This word to this day is used in Lithuanian language to name nobility, not only for own, but also for nobility of other countries.
What word is used to denominate nobility?
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Answer: бояре


Problem: As of 2010, those of African ancestry accounted for 16.0% of Florida's population, which includes African Americans. Out of the 16.0%, 4.0% (741,879) were West Indian or Afro-Caribbean American. During the early 1900s, black people made up nearly half of the state's population. In response to segregation, disfranchisement and agricultural depression, many African Americans migrated from Florida to northern cities in the Great Migration, in waves from 1910 to 1940, and again starting in the later 1940s. They moved for jobs, better education for their children and the chance to vote and participate in society. By 1960 the proportion of African Americans in the state had declined to 18%. Conversely large numbers of northern whites moved to the state.[citation needed] Today, large concentrations of black residents can be found in northern and central Florida. Aside from blacks descended from African slaves brought to the US south, there are also large numbers of blacks of West Indian, recent African, and Afro-Latino immigrant origins, especially in the Miami/South Florida area. In 2010, Florida had the highest percentage of West Indians in the United States, with 2.0% (378,926) from Haitian ancestry, and 1.3% (236,950) Jamaican. All other (non-Hispanic) Caribbean nations were well below 0.1% of Florida residents.
In 1960 the population of African Americans increased by what percent? 
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Answer: unanswerable


Problem: A railway electrification system supplies electric power to railway trains and trams without an on-board prime mover or local fuel supply. Electrification has many advantages but requires significant capital expenditure. Selection of an electrification system is based on economics of energy supply, maintenance, and capital cost compared to the revenue obtained for freight and passenger traffic. Different systems are used for urban and intercity areas; some electric locomotives can switch to different supply voltages to allow flexibility in operation.
A railway electrification system supplies power to trains and trams with an on-board what?
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Answer:
unanswerable