If I denotes ‘÷’, J denotes ‘×’, K denotes ‘−’ and L denotes ‘+’, then what will come in place of ‘?’ in the following equation?
 42 L 18 K (7 J 4) L (21 I 3) J 9 L 22 = ?

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

LMR, PUA, TCJ, XKS, ?

By interchanging the given two signs and numbers which of the following equation will be correct?
 + and –, 7 and 3

In a certain code language, '471' means 'Hair is White', '726' means 'White Her Cow', and '639' means 'Cow gives Milk'. What is the code for 'Her' in that language? 

In a certain code language, 'KING' is coded as '16181320', and 'HOP' is coded as '191211'. How will 'STA' be coded in that language?

Six friends A, B, C, D, E and F are sitting around a circular table facing the centre (not necessarily in the same order). A sits third to the left of D. D sits to the immediate right of B. B sits second to the left of E. C sits second to the right of F. Who sits second to the right of A?

Directions: Study the following information and answer the given questions.

* D is daughter of N. E is wife of N.
 * G is sister of D. C is married to G.
 * N has no son. K is mother of E.
 * Q is only daughter of C.

How Q is related to D?

Direction: Study the following information carefully and answer the question given below.

There are nine members in the family – J, K, D, M, T, U, B, W and X. W is the son of M. J is the sister of U. T is the brother of M’s sister K. B is the brother of W. X is the father of M who is not the son of U. U is the mother of T. D is the father of B.

How is B related to U?