Words given on the left side of (::) are related with each other by some Logic/Rule /Relation. Select the missing word/word pair on the right side of (::) from the given alternatives based on the same Logic/Rule/Relation.

Dog : Four :: Parrot : ?

Two

Logic here is :

Dog : Four

Dog has four legs .

Similarly ,

Parrot : ?

Parrot has two legs .

Ans = Two