Verbal Reasoning - Mental Ability Questions

Select the missing letter from the given responses?

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

5 , 11 , 24 , 51 , 106 ,____?

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

In the following question, select the related letters from the given alternatives.
JPC : GMZ : : PUV : ?

In a certain code, 592 means 'grapes are sweet', 374 means 'I like oranges' and 267 means 'oranges are sour'. Which digit represents sour?

The following equation is incorrect. Which two signs should be interchanged to correct the equation? 15 x 18 - 6 ÷ 20 + 4 = 29

A word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as shown in the given two matrices. The columns and rows of Matrix-I are numbered from 0 to 4 and that of Matrix-II are numbered from 5 to 9. A letter from these matrices can be represented first  by its row and next by its column ,for example 'F' can be represented by 41,24 etc and 'V' can be represented by 57,78 etc. similarly,you have to identify the set for the word ''MOCK''.

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
6, 18, 54, ? , 486, 1458