Coding and Decoding Questions

In a certain code language, "MATCH" is written as "NYWYM" and "BOARD" is written as "CMDNI". How is "PRINT" written in that code language?

In a certain code language, "BRING" is written as "25698" and "JAIL" is written as "4367". How is "BRINJAL" written in that code language?

If BAPTISM is coded as DCRVKUO, then how will TIN be coded as?

In a certain code language, 'NIGERIA' is written as '@#^$?#*'. How is 'GINGER' written in that code language?

In a certain code language, "DISORDER" is written as "OSIDREDR". How is "PRACTICE" written in that code language?

In a certain code language, 'TRUMPET' is written as '7591427' and 'SORROW' is written as '385586'. How is 'EMPRESS' written in that code language?

If 9 $ 4 = 17 and 1 $ 5 = 10, then 3 $ 6 = ?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
c_e_cd_f_d_f