If $PLANE$ is coded as $OKZMD$ in a certain language,how will $TRAIN$ be coded?

If orange is called butter,butter is called soap,soap is called ink,ink is called honey and honey is called orange,which of the following is used for washing clothes?

If in a certain language,$CALCUTTA$ is coded as $GEPGYXXE$,which word would be coded as $FSQFCE$?

If $XT = 20$, $BAT = 40$, then $CAT$ will be equal to

In a certain code,$4975$ means 'Throw away garbage',$528$ means 'Give away smoking',and $213$ means 'Smoking is harmful'. Which digit in that code means 'Give'?

In a certain code language:
$(A)$ 'pit na som' means 'bring me water'
$(B)$ 'na jo tod' means 'water is life'
$(C)$ 'tub od pit' means 'give me toy'
$(D)$ 'jo lin hot' means 'life and death'
To find out the answer to the above question (which is implied to be decoding the language),which of the following statements can be dispensed with?