Answer: B) United States Explanation: The United States Constitution, ratified June 21, 1788, was influenced by the writings of Polybius, Locke, Montesquieu, and others. The document became a benchmark for republicanism and codified constitutions written thereafter. The Polish–Lithuanian Commonwealth Constitution was passed on May 3, 1791.

Answer: A) 23 Explanation: The given number series 2, 19, 0, 21, –2, ? follows a pattern, 2 2 + 17 = 19 19 - 19 = 0 0 + 21 = 21 21 - 23 = -2 -2 + 25 = 23   Hence, the next number in the series is 23.

Answer: B) 21 June Explanation: June 21St has been declared as the "International Yoga Day" by the United Nations General Assembly on December 11, 2014. The declaration came after the call for adoption of this day by Indian Prime Minister Narendra Modi during his address to UN General Assembly on September 27, 2014. 21st June, 2017 is the 3rd International Yoga Day.

Therefore the answer for What travels around the world but stays in one spot is STAMP or any other thing that acts as a stamp does. Ex. the letter in the envelope etc...   Since, Several things have the possibility, but the word travel evokes that it would move.

Answer: C) 31.4208 and 62.8416 Explanation: Birds speeds in mtrs/sec is 'x' and '2x' .While flying from Engine to end, relative speed = (x+10) m/secfrom end to engine, flying speed = (2x - 10) mtr/secso 1000/(x+10) + 1000/(2x-10) = 187.5 secssolving it, we getso x = 8.728 m/sec and 2x= 17.456 m/sec x = 31.4208 km/hr and 2x = 62.8416 km/hr.

Answer: B) 15th Lok Sabha Explanation:

Answer: D) Hydrogen Explanation: Because of its being pollution free and  combustion efficient, Hydrogen gas is  called fuel of future. Because of its origin in marshy places, Methane is called as 'Marsh Gas'.

Answer: D) Dangal Explanation: