Select the related word/letters/number from the given alternatives.

Pakistan: Islamabad :: Germany: ? 

Select the option in which the pair of letter-clusters share the same relationship as that shared by the given pair of letter-clusters.

MOB : KMZ :: ?

2 : 7 :: 6  

Select the related word/letters/number from the given alternatives.

25: 260 : : 30 : ?

Directions : In each of the following questions, select the related word from the given alternatives. 

President : India : : King : ? 

Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and the fourth letter-cluster is related to the third letter-cluster.
 ROSE : IVQS :: SUIT : XLWT :: TIME : ?

‘Glaucoma’ is related to ‘Eyes’ in the same way as ‘Arthritis’ is related to ‘_____’.

Find the related words.
$$ {L\over S}:{12\over 19}::{I\over T}:?$$