Coding and Decoding Questions

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

In a code language, AILMENT is written as 1923540. What is the code for DISEASE?

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

In a certain code language, "SINGING" is written as "TJOHJOH". How is "DANCING" written in that code language?

If 4 * 7 * 2 = 361 and 5 * 9 * 1 = 480, then 2 * 1 * 3 = ?

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

In a certain code language, "OPTIMIST" is written as "LKRNRGHG". How is "PESSIMIST" written in that code language?

If FRISKED is coded as HTKUMGF, then how will SUN be coded as?