Adam who is 20 years old is 4 times as old as Mary. What will be Mary’s age when Adam is twice as old as her?

If Ram runs less fast than Shyam and Shyam runs as fast as Lal but less fast than Tom. Who runs fastest? 

In a certain code language, "BANGED" is written as "JJKQCC" and "TILTS" is written as "XXOKU". How is "STRAY" written in that code language? 

In a certain code language, "CAGES" is written as " NADYB" and "SILVER" is written as "LZRIGR". How is "WATER" written in that code language? 

Find the missing number?
1,1,3,4,5,9, 7, 16, 9, 25, 11, ? 

Find the missing number?
2.2, 14.8, 40, 90.4, ? 

Direction: In the following question, select the related letters from the given alternatives.
Doctor : Hospital :: Chef : ? 

Direction: In the following question, select the related letters from the given alternatives.
Food : Hunger :: Sleep : ?