Verbal Reasoning - Mental Ability Questions

Select the missing number from the given responses?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?

54 x 9 - 3 ÷ 4 = ?

Select the related number from the given alternatives.
-3/7 : 7/3 :: 9/2 : ?

In the following question, select the related letter pair from the given alternatives. MOK : KLG : : ? : ?

In the following question, select the missing number from the given series.21, 26, 33, 42, 53, ?

In the following question, select the odd word pair from the given alternatives.

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

KRK, LTN, MVQ, ?

Two labourers L and M start at the same point. L walks 10 m South, then turns left and walks 25 m. In the meanwhile M walks 20 m West, then turns to his right and walks 15 m , then turns East and walks 45 m. Where is M with respect to L?