Verbal Reasoning - Mental Ability Questions

In a certain code language, "DISORDER" is written as "OSIDREDR". How is "PRACTICE" written in that code language?

In a certain code GIVE is written as VIEG and OVER is written as EVRO. How will DISK be written in that code?

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

72, 65.7, ? , 53.1, 46.8

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

If A's sister's husband is B's mother-in-law's son-in-law, how is A related to B?

In a certain code language, "VERBAL" is written as "KZAQDU". How is "CURIOUS" written in that code language?

In a certain code language, "READ" is written as "18514". How is "RATE" written in that code language?