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 'kunigaiksciai' (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 bajoraifrom Ruthenian (modern Ukrainian and Belarusian languages) . 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?

U.S. submarines accounted for 56% of the Japanese merchantmen sunk; mines or aircraft destroyed most of the rest. US submariners also claimed 28% of Japanese warships destroyed. Furthermore, they played important reconnaissance roles, as at the battles of the Philippine Sea (June 1944) and Leyte Gulf (October 1944) (and, coincidentally,[clarification needed] at Midway in June 1942), when they gave accurate and timely warning of the approach of the Japanese fleet. Submarines also rescued hundreds of downed fliers, including future U.S. president George H.W. Bush.
What future U.S. president was rescued by a submarine?
George H.W. Bush

The Cathedral of Brasilia in the capital of the Federative Republic of Brazil, is an expression of the architect Oscar Niemeyer. This concrete-framed hyperboloid structure, seems with its glass roof reaching up, open, to the heavens. On 31 May 1970, the Cathedral's structure was finished, and only the 70 m (229.66 ft) diameter of the circular area were visible. Niemeyer's project of Cathedral of Brasilia is based in the hyperboloid of revolution which sections are asymmetric. The hyperboloid structure itself is a result of 16 identical assembled concrete columns. These columns, having hyperbolic section and weighing 90 t, represent two hands moving upwards to heaven. The Cathedral was dedicated on 31 May 1970.
How many identical columns are used in the Cathedral of Brasilia?
16