Coding and Decoding Questions

In a certain code language, "RAIN" is written as "OHBQ". How is "SUMMER" written in that code language?

If MEAT is coded as 135120. then what will be the code for ZEBRA?

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

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

If 18 x 12 = 206 and 19 x 22 = 408, then 23 x 36 = ?

In a certain code language the word EXAMPLES is written as EMAXSEPL. How will the word BUOYANCY be written in that language?

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