Coding and Decoding Questions

In a certain language KINDLE is coded as ELDNIK, how is IMPOSING coded in that code?

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

825 x 25 - 27 ÷ 10 = ?

In a certain code language, if SIGN is coded as 8367 and DIRECT is coded as 134259, then SIREN will be coded as

If DIJOB means CHINA, then the last letter of the word got by decoding KBQBO is

If in a certain language, TREE is coded as USFF, how is MANGO coded in that language?

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

42 x 7 ÷ 7 + 9 - 62 = ?

If DRIVER is coded as 5 and BELIEVED is coded as 7, then what is the code for EXAMINATION?

If 'whom' means 'x', 'she' means '/', 'will' means '+' and 'come' means '-', then what will the value of ' 8 when 12 will 16 she 2 come 10'?