Verbal Reasoning - Mental Ability Questions

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series. AB, GH, MN, ST, ?

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
400, -200, 100, ? , 25, -12.5

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

1.5, 9/4, 3, ? , 4.5, 21/4

Find the missing number from the given alternatives.

In the following question, select the word which cannot be formed using the letters of the given word.

BILLIONAIRE

If "S" denotes "multiplied by", "V" denotes "subtracted from", "M" denotes "added to" and "L" denotes "divided by", then 7 V 42 M 56 L 8 S 5 = ?

Arrange the given words in the sequence in which they occur in the dictionary.
i. Nuzzled
ii. Nozzle
iii. Nonjury
iv. Nocking

If 19#13=3; 25#3=11; 36#10=13; then what is the value of 7#3=?