Complete the following alphabet series.
ZA : YB :: YC :?

In the following question, select the related word from the given alternatives.
Encouragement: Victory :: Frustration: ?

In the following question, select the missing number from the given series.
19, 9, 28, 37, 65, ?

Virology : Virus :: Semantics : ? 

Kartik travelled 3 km east, then took a right turn and travelled 4 kms. How far is he from starting point?

Arnav's birthday is on Tuesday 14^th March. On what day of the week will be Pranay's Birthday in the same year if Pranay was born 13th September? 

A letter series is given below in which some letter are missing. Select the  option that gives the letters that can fill these blanks in that order.
a_ca_bab_ad_abc_db

Three position of a cube are shown below. What will come opposite to face containing ‘5’?