Complete analogous pair - Sikkim : Gangtok : : Manipur : ?

D. IMPHAL

Choose analogous pair - Traffic : Road

C. BLOOD : VEINS

Choose or find odd word - Pineapple , Orange , Malta , Banana , Lemon

D. BANANA

In the following question, a matrix of certain characters is given. These characters follow a certain trend, row-wise or column-wise. Find out this trend and choose the missing character accordingly.
3 2 2
6 20 4
12 25 64
6 10 ?

B. 8

Given interchanges :
Signs + and - and numbers 4 and 8.

B. 4 - 8 + 12 = 0