Verbal Reasoning - Mental Ability Questions

If 8α9 = -72, -9α3 = 27 and -6α1 = 6, then find the value of -3α6 = ?

Select the odd letters from the given alternatives.

Some equations have been solved on the basis of a certain pattern. Find the correct answer for the unsolved equation on that basis.

8x7x6=765
5x3x2=421
9x6x4= ?

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

56 ÷ 8 + 12 - 72 = ?

In the following question, select the related word from the given alternatives.
Calendar : Date : : Index : ?

B is the brother of A, and A is the son of C. D is C's father. How is B related to D?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
VWX, BCD, HIJ, ?

While introducing a boy, Raju says, "He is the son of my wife's sister." How is the boy related to Raju?