Coding and Decoding Questions

In a certain code language,"MASTER" is written as "RETSAM". How is "LITERACY" written in that code language?

If Q = 10 and FAX = 50, then XEROX = ?

If "A" denotes "multiplied by", "B" denotes "subtracted from", "C" denotes "added to" and "D" denotes "divided by", then

7 B 17 C 88 D 11 A 6 = ?

In a certain code language, "TROUPE" is written as "GILFKV" and "ERUPTION" is written as "VIFKGRLM". How is "GENIUS" written in that code language?

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, “HARMS” is written as “81181319” and “FLUTE” is written as “61221205”. How is “WOUND” written in that codelanguage?

In a certain code language, "PEPPER" is written as "@#@@#!" and "AIM" is written as "^?*". How is "PAMPER" written in that code language?

In a certain code language, "RIVER" is written as "12351" and "RED" is written as "156". How is "DRIVER" written in that code language?