Coding and Decoding Questions

If a = x, b = / and c = +, find the value of 7a5c1b6

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

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 the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

X_ZX_YY_ZX_Z

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

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

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