Verbal Reasoning - Mental Ability Questions

If "A" denotes "multiplied by", "B" denotes "subtracted from", "C" denotes "added to" and "D" denotes "divided by", then

8 B 31 C 49 D 7 A 16 = ?

Identify the diagram that best represents the relationship among classes given below
Tennis fans, Cricket players, Students

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

OXXXXX, XXXXO, OXXX, XXO, OX, ?

In the following series, one letter is missing as shown by the ?. Select the missing letter from the given options.

Q, N, K, H, ?

In the following question, select the related word from the given alternatives.
Goiter : Iodine : : Anemia : ?

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.
rupees, arena, pursue, spare, separate, ?

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

AZ, BY, CX, ?

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

B, D, H, P, ?