Answer: B) 29.39 cm Explanation: Volume of water flowing through 1 pipe of diameter x = Volume discharged by 6 pipes of diameter 12 cms.   As speed is same, area of cross sections should be same.    Area of bigger pipe of diameter x = Total area of 6 smaller pipes of diameter 12  i.e πR2 = 6πR12    Here R = R and R1 = 12/2 = 6    ⇒R2 = 6×6×6    R = 14.696    => D = X = 14.696 * 2 = 29.3938 cm.

Answer: C) Virat Kohli Explanation: i. India’s Virat Kohli was named Wisden’s Leading Cricketer in the World for 2016. ii. Kohli had also won the prestigious ‘Polly Umrigar award’ presented to the ‘International Cricketer of the Year’ at the BCCI Annual Awards. iii. Kohli was additionally declared Wisden India Almanack’s Cricketer of the Year for the second time in its 2017 edition.

Answer: D) Owl Explanation: An owl. "What noise does an owl make? The sound an Owl makes, it sounds like, "Who?" to our ears. They sounds entire lives asking the same question, but they'll never give any answers.