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. 

Laugh : Joke : : ? : Cracker  

2 : 7 :: 6  

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 :: ?

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

Three of the following words are alike in a certain manner and one is different. Find the odd one out.

Select the option that is related to the third word in the same way as the second word is related to the first word. (The words must be considered as meaningful English words and must NOT be related to each other based on the number of letters/number of consonants/vowels in the word)
 Cow : Bull :: Mice : ?

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 : ?