Verbal Reasoning - Mental Ability Questions

If MIGRANT is coded as LHFQZMS, then how will GEL be coded as?

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

9 ÷ 16 - 25 + 10 x 20 = ?

Select the related number from the given alternatives.
12.5 : 6.25 :: 7 : ?

In the following question, select the related number from the given alternatives.
4 : 17 : : 7 : ?

If "P" denotes "multiplied by", "R" denotes "subtracted from", "S" denotes "added to" and "Q" denotes "divided by", then 6 P 7 S 169 Q 13 R 5 = ?

Gopal is older than Mohan but younger than Ram. Mohan is older than Sohan but younger than Ram. Who is the oldest?

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.
Oxygen, Toil, Arouse, Arson, Tenuous, ?

Raju's position in a row is 13th from the front side and 6th from the back side. How many people are standing in that row?