Verbal Reasoning - Mental Ability Questions

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 'H' can be represented by 32,41 etc and 'N' can be represented by 98,85 etc. similarly,you have to identify the set for the word ''IOTA''.

Select the related word/letters/number from the given alternatives.
Frog : Amphibian : : Cobra : ?

Q is P's sister. R is P's mother. M is Mrs. R's father. How is Q's father related to M?

Introducing a man, a woman says, "He is the son-in-law of the wife of my father and I am the only child of my parents". How is the man related to the woman?

Which one of the following diagram represent the relationship among Parliament, Council of Ministers and Prime Minister?

Options:

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

Q, P, O, N, ?

Two planes start from the same airport. A flies 50 km East. B flies 15 km North, then turns East and flies 20 km, then turns to its right and flies 15 km. Where is B with respect to A now?

In these questions, the relationship between two elements is shown in the statements. These statements are followed by two conclusions.
Statement: X = M < A < S = T < R

Conclusion:
I. M = T
II. R > A