Coding and Decoding Questions

The following equation is incorrect. Which two signs should be interchanged to correct the equation? 12 - 6 x 5 + 20 ÷ 4 = 31

If ETHANOL is coded as HWKDQRO, then how will MIX be coded as?

If A = 1, AND = 19, then ANT = ?

If DECEMBER is coded as EDECBMRE then FEBRUARY will be coded as

If RATION is written as OXQFLK then LUMBER may be written as _____ .

If 37*14 = 17,
69*33 = 34,
91*125 = 72
then what should 28*56 = ?

If L denotes 'x', M denotes '÷' , P denotes '+' and Q denotes '-'  then 16P24M8Q6M2L3

In a certain code language, "DESIRE" is written as "EGVMWK". How is "RECESS" written in that code language?