Coding and Decoding Questions

If S = 19, SUN = 54 and CAKE = 20 , then MISTAKE = ?

In a certain code language, "DELETE" is written as "#@^@%@" and "GRAM" is written as "!?*&". How is"TELEGRAM" written in that code language?

If OUTLINE is coded as QWVNKPG, then how will MAN be coded as?

In a certain code language, "WILDHORN" is written as "1133" and "RAPTURE" is written as "1089". How is "PORTLOUIS" written in that code language?

If 1∆-5=5, 4∆7=-28 and -1∆-3=-3, then find the value of 8∆-8 =?

If REGAINS is coded as QDFZHMR, then how will PRY be coded as?

If 5 # 9 @ 7 = 52 and 3 @ 9 # 2 = – 89, then 7 # 6 @ 9 = ?

If QUICKLY is coded as OSGAIJW, then how will HUE be coded as?