If in a certain language,$NEOMAN$ is coded as $OGRQFT$,which word will be coded as $ZKCLUP$?

If in a certain language $POPULAR$ is coded as $QPQVMBS$,which word would be coded as $GBNPVT$?

If in a certain language,$SHIFT$ is coded as $RFFBO$,which word would be coded as $LKUMB$?

If in a certain code language,'$324$' means 'Light is bright','$629$' means 'Girl is beautiful',and '$4758$' means '$I$ prefer bright clothes',which digit means 'Light' in that language?

If $ROPE$ is coded as $6821$ and $CHAIR$ is coded as $73456$,then what will be the code for $CRAPE$?

If 'table' is called 'chair','chair' is called 'cupboard','cupboard' is called 'chalk','chalk' is called 'book','book' is called 'duster',and 'duster' is called 'table',what does the teacher use to write on the blackboard?