Verbal Reasoning - Mental Ability Questions

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with someLogic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given options

If A=1, CAT=60, then MAN=?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
C A E, F D H, I G K, ?

Select the related word/letters/number from the given alternatives.
BCD : YXW : : FGH : : ?

In a certain code language, “TRUCKS” is written as “WPXANQ”. How is “MOPERS” written in that code language?

Out of the 100 nature lovers, 20 people wanted to see only bison, 30 wanted to see both bison and tiger, 15 wanted to see only leopard, 25 wanted to see only tiger, 5 wanted to see both bison and leopard and the remaining wanted to see only bear.

The ratio of people to wanted to see tiger to those who wanted to see bear is

Mathur's uncle's daughter's brother is Salmi. How is Sonm related to Mather? 

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it? a_c_e_b_de