Coding and Decoding Questions

If P denotes ÷ , Q denotes x, R denotes + and S denotes ­ then what is the value of 18Q12P4R5S6

In a certain code language, “NOTES” is written as “141520519” and “MAKAR” is written as “13111118”. How is “LOFTS” written in that code language?

If FRIEND is coded as HTKGPF then REVEAL will be coded as:

If 4 * 7 * 2 = 361 and 5 * 9 * 1 = 480, then 2 * 1 * 3 = ?

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

In a certain code language, "SINGING" is written as "TJOHJOH". How is "DANCING" written in that code language?

If FRISKED is coded as HTKUMGF, then how will SUN be coded as?

If BUDDHISM is coded as DWFFJKUO then CHRISTIAN will be coded as __________ .