Answer: A) 23 Explanation: 23 chromosomes are in a human gamete. Human somatic cells have 46 chromosomes(23 pairs) but a gamete(germ cell) gets half the amount, i.e. 23 chromosomes, (one from each pair). There will be half the number of chromosomes an organism has in its somatic cells (all other body cells except gametes).   For example in humans, the somatic cells contain 46 chromosomes which are the diploid number (2n) and each sperm and egg has 23 chromosomes where one of them is the sex chromosome.

Answer: D) 133 Explanation: Here among the given numbers, 3, 19, 67 are prime numbers. And 133 is not a prime number.   Hence, the odd number of the given numbers is 133.

Answer: C) judgement Explanation: The reason why drunk people acts like stupids is when they drink, especially if they drink a lot, first their brain becomes impaired by such large quantities of alcohol that it cannot operate properly. So they cannot judge anything.   Hence, Alcohol first impairs your Judgement.

Answer: B) Nauru Explanation:

Answer: A) Succession Explanation: The process which wherein an Ecosystem may renew itself is known as Ecological Succession. The time scale may be decades or a million of years after a mass extinction.  It may be achieve over a period of time.

Answer: A) Kattupalli Shipyard Explanation: India’s first indigenously built Floating Dock (FDN-2) for the Indian Navy has launched at the L&T Shipbuilding Yard at Kattupalli near Chennai, Tamil Nadu. The Floating Dock is 185 metres long and 40 metres wide and will enable docking of all kinds of vessels, including Naval ships and submarines (excepting aircraft carriers and tankers) of up to 8,000 tonnes displacement, with draughts of up to seven metres, during both day and night. FDN-2 was designed and built by Larsen & Toubro Ltd. (L&T) at a cost of Rs 468 crore.

Answer: C) 9 & 21 Explanation: Let the two numbers be x and y Given x : y = 3 : 7 .....(1) Now, x+6 : y+6 = 5 : 9 .....(2) From (1), x = 3y/7 From (2), 5y - 9x = 24 => 5y - 9(3y/7) = 24 => y = 21 => From(1), x = 9 Hence, the two numbers be 9 and 21

Answer: B) U Explanation: The letters move 2, 2, 3, 3, 4, 4, ... steps forward.