Coding and Decoding Questions

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

96 L 12 S 7 V 49 M 10 =?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
550 x 22 - 24 + 3 = ?

If 11$25 = 18, 12$20 = 16 then what is the value of 4$50 = ?

If 4 * 2 = 3 and 8 * 4 = 3 , then 21 * 7 = ?

If 'x' means addition, '­' means division, '÷' means subtraction and '+' means multiplication, then which of the equations is correct?

In a certain code language, “MAKER” is written as “PDNHU”. How is “TOOLS” written in that code language?

In the following question, by using which mathematical operators will the expression become correct?
27 ? 9 ? 18 ? 24 ? 12

If SUN = 108, MOON = 114. What is STAR = ?