If INDIAN is coded as NADINI, in the same way EXPERT can be coded as _____.

If in a certain code language 'CHITRANSH' is written as 'CPUJIEJKV 'then, How would the 'ELECTRONS' be written in that code? 

In a certain code, REFRIGERATOR is coded as ROTAREGIRFER. Which word would be coded as NOITINUMMA? 

If ‘ROSE’ is coded as $\text{'}6821\text{'}$, ‘CHAIR’ is coded as $\text{'}73456\text{'}$ and ‘PREACH’ is coded as $\text{'}961473\text{'}$. What will be the code for ‘SEARCH’?

In a certain code, 'APPLE' is written as 'BPPLD' and 'CEAT' is written as 'DEAS', then how will be 'HEART' written in that code?