Coding and Decoding Questions

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

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

If P denotes +, Q denotes -, R denotes '÷', and S denotes X, then: 18S36R12Q6P7 = ?

If 56 x 11 = 9, 37 x 13 = 6, 42 x 12 = 3, then find the value of 87 x 77.

In a certain code language, “CUDGEL” is written as “FYGKHP”. How is “DAINTY” written in that code language?

If FLOTSAM is coded as UOLGHZN, then how will PIN be coded as?

If PROJECT is coded as KILQVXG, then how will EGO be coded as?

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