Which country became the 100th full member of the

What should come in place of? in the given series based on the English alphabetical order?

ΤΟΥ, UQB, VSE, WUH, ?

In a certain code language, 'YOU' is coded as '20' and 'LIP' is coded as '44'. What is the code for 'ROB' in the given code language?

In a knockout football competition 23 teams participated. What was the least number of matches they needed to play to decide the winner?

Select the number from among the given options that can replace the question mark (?) in the following series.

3, 17, 73, 297, ? , 4777

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.

GF, KI, OL, SO, ?

Study the given pattern carefully and select the number that can replace the question mark (?) in it.

Select the option that is related to the third letter-cluster in the same way as the second letter-

Select the option that represents the correct order of the given words as they would appear in an English dictionary?

1. Voice

Change the question mark with the option that follows the applied logic in the first pair. 

Net : Fish :: Antenna : ??