Coding and Decoding Questions

In a certain code language, '-' represents '+', '+' represents 'x', 'x' represents '÷' and '÷' represents '-'. Find out the answer to the following question.

16 x 4 ÷ 15 - 9 + 4 = ?

In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'. Find out the answer to the following question.

18 - 2 + 20 x 10 ÷ 4 = ?

If LOW is coded as 468, BOW as 768, and SOWS as 3683, then the code of BOWLS is

If A = 1 and OAR = 34, then ROAR =

If BOULDER is coded as ZMSJBCP, then how will ELK be coded as?

If 'due to you' is coded as 'ba da ca', 'he is due' as 'xe ba le' and 'is sue to' as 'ba xe ca', then 'you' = ?

If "S" denotes "multiplied by", "V" denotes "subtracted from","M" denotes "added to" and "L" denotes "divided by", then

44 L 11 S 7 V 7 M 9 = ?

In a certain code, 327 means 'don't cut tree', 635 means 'plant one tree', 138 means 'tree gives shade' and 4953 means 'we must plant tree'. Which digit represents 'shade'?