Coding and Decoding Questions

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

75 - 5 + 25 ÷ 125 = ?

In a certain code, 134 is AGE and 92706 is INERT. What is 016923?

If P denotes multiply, T denotes subtraction, M denotes addition, B denotes division then 28B7P8T6M4 = ?

If 26#14=80; 5#3=16; 6#5=22; then what is the value of 14#5=?

If 18α1 = 34, 19α2 = 34 and 18α3 = 30, then find the value of 18α8 = ?

In a certain code language, "DURING" is written as "GRUFQD". How is "PICKED" written in that code language?

Two motorcyclists P and Q start from the same point. P rides 11 km West, then turns South and rides 16 km, then turns to his right and rides 14 km. Q rides 30 km South, then turns to his right and rides 25 km. Where is Q with respect to P now?

If EXPLAIN is coded as BUMIXFK, then how will GYM be coded as?