Coding and Decoding Questions

If in a certain code, GREEN is written as ITGGP, then how will OINK be written as in the same code?

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

9 + 3 - 72 x 6 ÷ 3 = ?

If CHANTED is coded as ZEXKQBA, then how will MAY be coded as?

In a code language, BURN is written as YFIM. What is the code for WOUND?

If 8 θ 12 δ 6 = 60 and 13 θ 15 δ 11 = 74, then 18 θ 21 δ 15 = ?

If I=9 and SLIP=56, then FALL= ?

If 8*9 = 36, 12*4 = 24 and 14*6 = 42, then find the value of 18*6 = ?

If 16α1 = 8, 14α6 = 42 and 12α5 = 30, then find the value of 2α6 = ?