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In a certain code language,
A + B means ‘A is the sister of B’,
A @ B means ‘A is the brother of B’,
A - B means ‘A is the wife of B’,
and A # B means ‘A is the father of B’.
How is O related to V if ‘O - P # T @ G + V’?

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?

LEX 14, OHA 23, RKD 32, UNG 41, XQJ 50, ?

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 their constituent digits. E.g. 13 – Operations on 13 such as adding to/subtracting from/multiplying with 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

(10, 150, 5)
(8, 96, 4)

Which of the following number will replace the question mark (?) in the given series?

24, 27, 35, 59, 107, 227, ?

Seven people, A, B, C, D, E, F and G, are sitting in a row, facing north. Only A sits to the left of D. Only four people sit between A and C. Only B sits between G and F, and G is not an immediate neighbour of C. How many people sit to the right of G?

What will come in place of the question mark (?) in the following equation if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?

351 ÷ 3 + 284 × 4 − 11 = ?

Which of the following letter-clusters will replace the question mark (?) in the given series to make it logically complete?

HZC, LDG, PHK, TLO, ?

What should come in place of the question mark (?) in the given series?

12 23 34 45 56 ?

O, P, Q, R, W, X and Y are sitting in a straight line facing north. Only two people sit to the left of P. Only three people sit between P and W. Only one person sits between W and X. R sits to the immediate left of O. Y is not an immediate neighbour of W. How many people sit to the right of Q?