Coding and Decoding Questions

If 6@1 = 12, 6@2 = 24 and 9@9 = 162, then find the value of 4@6 = ?

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

In a certain code language, "REMOTE" is written as "KYSPGS" and "BRAND" is written as "IRDTC". How is "MOBILE" written in that code language?

If OUTLINE is coded as QWVNKPG, then how will MAN be coded as?

In a certain code GIVE is written as VIEG and OVER is written as EVRO. How will DISK be written in that code?

If 9#3 = 120, 3#4 = 70 and 2#9 = 110, then find the value of 5#2 = ?

In a certain code language, "READ" is written as "18514". How is "RATE" written in that code language?

If 19 + 2 x 2 + 3 = 369 and 23 + 2 x 6 + 2 = 565, then 7 + 3 x 11 + 3 = ?