A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
AY, CW, EU, ?

Find the odd word from the following:

INTERNATIONAL 

Complete the series choosing the missing number:

3, 15, 63, 255, 1023, ______

A boat moves from a jetty towards the East. After sailing from 9 nautical miles, she turns towards the right and covers another 12 nautical miles. If she wants to go back to the jetty what is the shortest distance now from her present position?

Directions: - Each question given below consists of a statement, followed by two arguments numbered I and II. You have to decide which of the arguments is a ‘strong’ argument and which is a ‘weak’ argument.
statement: 
Should there be more than one High Courts in each state in India?
Arguments: 
I. No, this will be a sheer wastage of taxpayers' money.
II. Yes, this will help reduce the backlog of cases pending for a very long time. 

. ____, 9, 25, 49, 121, 169