Verbal Reasoning - Mental Ability Questions

In the following question, select the related letters from the given alternatives.
ELQZ : AJOV : : VXTD : ?

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 = ?

From the given alternative words, select the word which cannot be formed using the letters of the given word. SPECULATION

In a certain code language, '-' represents '+', '+' represents 'x', 'x' represents '÷' and '÷' represents '-'. Find out the answer to the following question.

3 ÷ 12 - 40 + 5 x 20 = ?

If 23 x 16 = 184, 37 x 10 = 185, then 85 x 12 = ?

Johnny's father is the brother­in­law of Nisha's only sister. How is Johnny related to Nisha?

Select the related word/letters/number from the given alternatives.
Donkey : Brays :: Monkey : ?

If I=9 and SLIP=56, then FALL= ?