Coding and Decoding Questions

If 'P' means 'divided by', 'T' means 'add', 'M' means 'subtract' and 'D' means 'multiplied by', then what will be the value of the following expression?

12 M 12 D 28 P 7 T 15

If -3%1 = 3, 3%6 = -18 and -7%4 = 28, then find the value of -2%9 = ?

In a certain code language, “TOLDER” is written as “WSQGIW”. How is “SPIRAL” written in that code language?

If '+' means 'multiplication', '-' means 'division', 'x' means 'subtraction' and '/' means 'addition', then 9 + 8 / 8 - 4 x 9 =

If BLACK = AMZDJ then BEAUTIFUL = ?

If + means /, / means -, - means x, x means +, then 10 + 5 / 7 - 4 x 30 = ?

If CABINET = EIACBTN, then COMPUTE = ____.

If the mathematical operator '+' means '÷', '-' means '+', '÷' means 'x' and 'x' means '-', then the value of 17 - 7+ 27 + 3 x 79 is