If APPLES is written as BORJHP, how will BANANA be written?

In a certain code language 'HIM-ACE' is written as 21. How will 'SIP-TAG' be written in that code language?

RAIN is written in a code as 8$%6 and MORE is mentioned as 7#8@. How will REMAIN be mentioned in code language?

In a certain code DRAUGHT is written as CQBVHIU and CONCISE is written as BNODJTF. How will PROBLEM be written?

If ALTERED is written as WVIVGOZ, then RELATED would be written as

In a code language, PERMUTATION is written as IBKFRMXMFLG. How will PUBLICSECTOR be written as in that language?