Verbal Reasoning - Mental Ability Questions

If 12 (20) 16 and 21 (35) 28, then what is value of A in 48 (80) A ?

In a certain code language "CANADA" is written as "BZMBEB". How is "SYDNEY" written in that code language?

If SELFIE = LXEYBX, then PHYSICS = ____

Select the related word/letters/number from the given alternatives. GI : HJ : : PR : ?

In the following question, select the related number from the given alternatives.
9143 : 9963 : : 6731 : ?

B is the brother of A, and A is the son of C. D is C's father. How is B related to D?

Select the appropriate combination of mathematical operators to be sequentially placed between the numbers given on the left of the following equation so that LHS = RHS.

5035 = 20

In a certain code CAMEL is written as MFNBD. How shall TIGER be written in that code?