Verbal Reasoning - Mental Ability Questions

Pointing to a lady, Diwakar said, "Her mother's only grandson is my son." How is that lady related to Diwakar?

If 6 @ 4 @ 7 = 101 and 2 @ 5 @ 11 = 150, then what is the value of A in A @ 8 @ 9 = 289?

In a certain code language, "LIAR" is written as "5782" and "RANGE" is written as "28641". How is "ARRANGE" written in that code language?

If 5$125 = 25, 12$48 = 4 then what is the value of 4$24 = ?

Select the missing number from the given responses?

Introducing a man, a girl says " He is the only son of my mother's mother." How is the man related to the girl ?

Pointing towards a lady in a photograph, a girl says, "Vidit's grandmother is the mother-in-law of this lady". How is the lady in the photograph related to Vidit?

Thick : Thin :: Idle : ___