Number puzzles


Puzzles, Riddles and Brain Teasers

Direction: Read the following information carefully to answer these questions.

There is a family of six members A, B, C, D, E and F. They are lawyer, doctor, teacher, salesman, engineer and accountant not necessarily in that order. There are two married couples in the family. D, the salesman is, married to the lady teacher. The doctor is married to the lawyer. F, the accountant, is the son of B and brother of E. C, the lawyer, is the daughter-in-law of A. E is the unmarried engineer. A is the grand Mother of F.

  1. Which of the following is one of the couples?









  1. View Hint View Answer Discuss in Forum

    D, A and C, B are married couples.

    Correct Option: D

    D, A and C, B are married couples.


Direction: In Question Nos. 32 to 34, select the missing number from the given responses :

  1. 24 20 37
    31 25 ?
    26 36 19









  1. View Hint View Answer Discuss in Forum

    The sum of the numbers in each column is same.
    i.e., 24 + 31 + 26 = 81
    Similarly, 81 + 37 + ? + 19
    → ? = 81 - 56 = 25

    Correct Option: C

    The sum of the numbers in each column is same.
    i.e., 24 + 31 + 26 = 81
    Similarly, 81 + 37 + ? + 19
    → ? = 81 - 56 = 25



Direction: Select the missing number from the given responses.

  1. 2 4 2
    3 9 3
    4 16 4
    8 64 ?









  1. View Hint View Answer Discuss in Forum

    The pattern is -
    2 (2 x 2) 2
    3 (3 x 3) 3
    4 (4 x 4) 4
    8 (8 x 8) 8

    Correct Option: A

    The pattern is -
    2 (2 x 2) 2
    3 (3 x 3) 3
    4 (4 x 4) 4
    8 (8 x 8) 8


Direction: Some equations are solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.

  1. If 2463 = 36 and
    5552 = 30, then
    6732 = ?









  1. View Hint View Answer Discuss in Forum

    In this perticular problem, the logic is -
    2463 ⇒ (2 + 4 + 6) x 3 = 12 x 3 = 36
    5552 ⇒ (5 + 5 + 5) x 2 = 15 x 2 = 30
    6732 ⇒ (6 + 7 + 3) x 2 = 16 x 2 = 32

    Correct Option: A

    In this perticular problem, the logic is -
    2463 ⇒ (2 + 4 + 6) x 3 = 12 x 3 = 36
    5552 ⇒ (5 + 5 + 5) x 2 = 15 x 2 = 30
    6732 ⇒ (6 + 7 + 3) x 2 = 16 x 2 = 32