Coding and Decoding Questions

If "$" means "added to", "@" means "divided by", "#" means "multiplied by" and "%" means "subtracted from", then

136 @ 17 # 0 $ 19 % 5 = ?

If 6α1 = 70, 2α3 = 50 and 4α5 = 90, then find the value of 1α4 = ?

Answer the questions based on the below information.

If '+' is 'x', '-' is '+', 'x' is '/' and '/' is '-' then 3 x 2 + 4 - 2 / 9 = ?

Interchanging which two signs will make the following equation correct?

42 / 4 + 2 - 3 x 5 = 29

If @ means +, # means -, $ means x and * means /, then what is the value of 16 @ 4 $ 5 # 72 * 8 = 

Which signs should be interchanged if the equation below needs to be true?

1.5 + 8 x 9 - 16 / 2 = 4

In a certain code language CONCENTRATION is written as QQJGZIGQGDMLX. How will NITRIFICATION be written in that code language?

If 1!9 = -80, 2!8 = -60 and 8!1 = 70, then find the value of 3!2 = ?