Analogy

There is a certain relation between two given words on one side and one word is given on another side. The word is to be found from the given alternatives, having the same relation with this word as the given pair has. Select the best alternative.
Darwin : Evolution :: Archimedes : ___}

There is a certain relation between two given words on one side and one word is given on another side. The word is to be found from the given alternatives, having the same relation with this word as the given pair has. Select the best alternative.
Virology : Virus :: Semantics : ___}

In the following question, a pair of words is given followed by four pairs of words as alternatives. The candidate is required to choose the pair in which the words bear the same relationship to each other as the words of the given pair bear.
Apostate : Religion}

Choose a similar word:
Sitar : Guitar :: Tanpura : ?

Choose a similar word:
Jute : Cotton :: Wool : ?

Choose a similar word:
Marble : Slate :: Gneiss : ?

Find out the alternative which will replace the question mark:
Anatomy : Zoology :: Paediatrics : ___}

Select the related word(s) from the given alternatives:
Kidneys : Nephron :: Central Nervous System : ___}

Select the related number from the given alternatives:
F : 216 :: L : ___}

Select the related number from the given alternatives that will complete the series:
Y : 4 :: V : ___

Choose that set of numbers from the four alternative sets, that is similar to the given set.Given set: (265, 392, 285)

What can be placed at '?' if both side of '::' have same relationship between numbers:
85 : 42 :: 139 : ?

Potato : Carrot : Radish