What was the theme of the 10th World Ayurveda

In a certain code language, FASHION is coded as 26 – 8 – 38, and ILLEGAL is coded as 33 – 5 – 20. How will IMPROVE be coded in that language?

Select the option that is related to fourth letter-cluster in the same way second letter cluster is related to first letter-cluster.

Select the option that is related to the third word in the same way as the second word is related to the first word.

Generous : Miserly :: Ephemeral : ?

Find out the alternative which will replace the question mark?

Vaccination: Disease ∷ Maintenance:?

Select the combination of letter that when sequentially placed in the blanks of the given series will complete the series.

Shirt : Garment : Potato : _____________

Select the option that is related to the third number in the same way as the second number is related to the first number.

55 : 86 :: 37 : ?