Coding and Decoding Questions

If 10$25 = 8, 12$25 = 10 then what is the value of 14$53 = ?

If 14 % 32 = 46, 52 % 20 = 72 then what is the value of 35 % 14 = ?

If 13 # 9 = 94 and 18 # 7 = 100, then 24 # 6 = ?

In a certain code, 329 means 'you are bad', 419 means 'bad is good' and 195 means 'nothing is bad'. ___ represents 'good'.

If "S" denotes "multiplied by", "V" denotes "subtracted from", "M" denotes "added to" and "L" denotes "divided by", then

12 V 3 M 441 L 21 S 8 = ?

If "P" denotes "multiplied by", "R" denotes "subtracted from", "S" denotes "added to" and "Q" denotes "divided by", then 6 P 7 S 169 Q 13 R 5 = ?

In a certain code language, "RUMOUR" is written as "MURRUO". How is "RACKET" written in that code language?

If 40@8 = -5, 30@3 = -10 and 20@5 = -4, then find the value of 60@3 = ?