Coding and Decoding Questions

If BROTHER is coded as GWTYMJW, then SCHOOL is coded as

If 92 A 42 B 32 = 56 and 72 A 22 B 12 = 44, then 112 A 52 B 72 = ?

In a certain code, if LEMON is coded as PWOMA then SHIRT is 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 "A" denotes "added to", "C" denotes "divided by", "D" denotes "multiplied by" and "B" denotes "subtracted from", then 72 C 9 D 2 B 6 A 10 = ?

If IMPLORE is coded as GKNJMPC, then how will HUB be coded as?

If UNCOVER is coded as FMXLEVI, then how will TIP be coded as?

In a certain code language, "OCEAN" is written as "PEHES". How is "RIVER" written in that code language?