Verbal Reasoning - Mental Ability Questions

If 15@7=44; 5@4=18; 6@17=46; then what is the value of 17@4=?

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

WYV, ? , IKH, BDA

If code P is denoted by 7, X by 9, M by 5, Z by 8, L by 2, T by 1, then ZLTPXM will be

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

Rajasthan, Madhya Pradesh, Maharashtra, ?

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

Weight of Sona is four times that of Mona. Weight of Mona is 2.5 times of Hona. Weight of Hona is 1.5 times of Dhona. Weight of Dhona is 2.5 times of Rona. Who is the heaviest?

X and Y are brothers. R is the father of Y. T is the sister of S who is maternal uncle of X. How is T related to R?

In the following question, select the missing number from the given series.
1357, 3085, 5282, 8026, ?