Coding and Decoding Questions

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it? _AB_PQ_AB_P_

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, "CUTE" is written as "9251" and "REST" is written as "4135". How is "RESCUE" written in that code language?

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

If HEROISM is coded as SVILRHN, then how will ALP be coded as?

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

In a certain code language, “MONEY” is written as “ZDONN”. How is “RATED” written in that code language?

In a certain code language, "TOAST" is written as "56345" and "TRAIN" is written as "59310". How is"TORN" written in that code language?