Verbal Reasoning - Mental Ability Questions

In a certain code language, “FRIED” is written as “EQHDC”. How is “RUSTY” written in that code language?

If L denotes 'x', M denotes '÷' , P denotes '+' and Q denotes '-'  then 16P24M8Q6M2L3

In each of the following questions, four words have been given out of which three are alike in some manner, while the fourth one is different. Choose the word which is different from the rest.

If x means +, + means ÷, − means x and ÷ means −, then 8x7−8+40÷2 = ?

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

XFB,UGD ,RIG ,OLK, ?

If the number 1 on the clock is replaced by the letter M, the number 2 is replaced by N and so on, then when the time is 21:00 p.m. the hour hand will be at ____ letter

In these questions, the relationship between two elements is shown in the statements. These statements are followed by two conclusions.
Statement:
A = M >P, N > R, A > T
Conclusion:
I. T = P
II. R < A

Choose the related word/letters/number from the given alternatives. Tamil Nadu : Chennai : : Manipur : ?