Coding and Decoding Questions

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 "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 =?

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

In a code language, FATE is written as 61205. What is the code for LEAN?

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

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

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

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