Choose analogous pair - Revolver : Holster

A. BOOK : BAG

In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces. - 2, 3, 8, 63, (…..)

D. 3968

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.
F I O
A J K
E M ?

B. R

Choose or find odd letter group - HSIRJ , FTGSH , DWEVF , AZBYC

B. FTGSH

In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces. - 4, 32, 128,

D. 256