Verbal Reasoning - Mental Ability Questions

In the following question, select the missing number from the given series.
21, 25, 52, 68, 193, ?

If OUTLINE is coded as QWVNKPG, then how will MAN be coded as?

Anjali's brother, Shyam, is the grandfather of Rajendra's son. How is Shyam related to Rajendra?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

ABC, BDF, DHL, ?

If A's sister's husband is B's mother-in-law's son-in-law, how is A related to B?

A man is engaged for planting trees for 10 hours. He plants 10 trees in an hour. He takes rest for 30 minutes after every hour. How many trees does he plant in 10 hours?

In a certain code language, "VERBAL" is written as "KZAQDU". How is "CURIOUS" written in that code language?