Verbal Reasoning - Mental Ability Questions

In these questions, the relationship between two elements is shown in the statements. These statements are followed by two conclusions.
Statement:
Y > A < N, Y = B <P
Conclusion:
I. P > A
II. N > B

In a row of boys, Tarak is 18th from either end. How many boys are there in the row?

Pointing towards a boy Meera said 'He is the son of the only son of my grandfather.' How is that boy related to Meera?

Find the next term in the given series.B2, K12, T72, .......

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

BXM, EUP, HRS, ?

In the following question, select the related number from the given alternatives.
562 : 30 : : 663 : ?

Find the missing number in the following series.
27, 29, 33, ?, 57

If 6@1 = 12, 6@2 = 24 and 9@9 = 162, then find the value of 4@6 = ?