Coding Decoding Mock Tests

In a certain code language, LIGHT is written as MJIHU. How is DARK written in that code?

If in a code language, COMPUTER is written as DPNQVUPT, how is MACHINE written?

If COLD is written as BKNC, how is GAIN written in that code?

If FLOW is written as GMPX in a certain code, how is TABLE written?

In a certain code language, "7HS49R2" is written as "R2947HS". How will "3LM681P5" be written?

If COMPUTER is written as DPNQVUPT, how is ALGORITHM written?

If SOUTH is written as TPVUI, how is NORTH written in that code?

In a code language, PRINT is written as 37856 and IMAGE is written as 19042. How is GRATE written in that code?