Verbal Reasoning - Mental Ability Questions

If (2)#* 4 = 2 and (4)#* 4 = 16, then what is the value of A in (6)#* A = 18?

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

?, HI, OP, WX

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

In a certain code language, “MATE” is written as “41” and “LION” is written as “52”. How is “TARM” written in that code language?

Nikhil is 8 yr younger than his brother Rohan . How old will Rohan be when he is twice as old as Nikhil ?

Select the related word/letters/number from the given alternatives.
TU : MN : : JK : ?

In a certain code language, “FUNGI” is written as “HYPKK”. How is “ALGAE” written in that code language?

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

23, 32, 42, 53, 65, ?