If train is called bus,bus is called tractor,tractor is called car,car is called scooter,scooter is called bicycle,bicycle is called moped,which is used to plough a field?

In a certain code language,'Ka Bi Pu Ya' means 'You are very intelligent','Ya Lo Ka Wo' means 'They seem very intelligent','La Pu Le' means 'You can see' and 'Sun Pun Yun Ya' means 'How intelligent she is'. In that language,which of the following words means 'are'?

If $PRATAP$ could be given the code number $1618120116$, what code number can be given to $NAVIN$?

If rat is called dog,dog is called mongoose,mongoose is called lion,lion is called snake and snake is called elephant,which is reared as pet?

In a certain code $CHITON$ is written as $IHCNOT$. How will $DILATE$ be written in that code?

If in a certain language $CARROM$ is coded as $BZQQNL$,which word will be coded as $HOUSE?$