R is the brother of N. R is the only son of K. S is the only daughter-in-law of K. How is N related to S?

If + means −, − means ×, × means ÷, and ÷ means +, what will be the value of the following expression?
 45 × 9 ÷ 12 – 5 + 3

Which letter-cluster will replace the question mark (?) to complete the given series?

AVTE CTRG ERPI GPNK   ?

Directions: Read the following information carefully and answer the questions given below it.
There are ten members in a family of four generation in which there are three married couples. V is sibling of U and she is unmarried. S is daughter-in-law of Q.W has two children. X is grandmother of U.P is father of V. W and X are married couples.  T is nephew of V. Q is mother of U.W is not father-in-law of P.Z is granddaughter of Q. R is a female member of the family.

How R is related to son of Q?

Directions: Read the following information carefully and answer the questions given below it.
There are ten members in a family of four generation in which there are three married couples. V is sibling of U and she is unmarried. S is daughter-in-law of Q.W has two children. X is grandmother of U.P is father of V. W and X are married couples.  T is nephew of V. Q is mother of U.W is not father-in-law of P.Z is granddaughter of Q. R is a female member of the family.

How many persons are having less expensive gifts than U?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

7      26          63          124       215  ____?

6 persons A, B, C, D, E and F are sitting around a rectangular table (not necessarily in the same order) facing towards the centre. 4 persons are sitting at each corner, and one person is sitting at the middle of each shorter side of the table. B is an immediate neighbour of D and C. F is an immediate neighbour of A and D. E is an immediate neighbour of A and C. F is not sitting at any of the corners. Which of the following pairs represents the persons who are sitting exactly opposite to each other? 

Select the set in which the numbers are related in the same way as are the numbers of the following sets. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E. g. 13 – Operations on 13 such as adding / subtracting / multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed)
 (30, 93, 1)
 (42, 132, 2)