Verbal Reasoning - Mental Ability Questions

If "A" denotes "added to", "B" denotes "divided by", "C" denotes "multiplied by" and "D" denotes "subtracted from", then 87 B 3 C 4 A 4 D 50 = ?

Select the missing number.

From the given alternative words, select the word which can be formed using the letters of the given word:

COMMUNICATION

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
1, 5, 30, 210, 1680, ?

Select the number which can be placed in the given question figure?

In the following question, select the missing number from the given series.

54, 51, 48, 45, 42, ?

Looking at a lady, Joey said, "She is the mother of my mother's mother-in-law's husband". How is the lady related to Joey's father?

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

T Q N K H E B Y V S P ? ? ?