Which of the following figures perfectly depicts the relationship between pigeons, birds and dogs?

2,5,9, (…), 20,27?

Study the following information carefully and answer the questions given below:
 
Twelve people are sitting in two parallel rows containing six people each, in such a way that there is an equal distance between adjacent persons. In row-1 K, J, I, H, G and V are seated and all of them are facing South. In row-2 Z, Y, X, W, E and U are seated and all of them are facing North. Therefore, in the given seating arrangement each member seated in a row faces another member of the other row.
K sits third to the right of G. Z sits second to the right of E. Neither Z nor E faces G or K. Z does not sits at any of the extreme end. I does not faces Z or E and I does not sits at any of the extreme end. Only one person sits between U and X. Neither U nor X faces G. X does not sits at any of the extreme end. Only one person sit between V and J. U is not an immediate neighbour of Y. Z does not faces V. W sit extreme left end of the row.

How many persons are seated between Y and W? 

Four clusters have been given out of which three are alike in some manner and one is different. Select the one that is different.

Option

Five people, P, Q, R, S, and T, are sitting in a straight row, facing north. Q sits to the immediate left of S. Only three people sit between R and T. P sits to the immediate left of T. Who sits in the middle of the row?

Pointing toward’s a boy, a girl said that he is the only son of my paternal aunt's daughter. How will my brother’s only daughter is related to that boy?

A and B are brothers, E is daughter of F, F is wife of F, how is E related to A?

Select the option that is related to the fifth term in the same way as the second term is related to the first term and the fourth term is related to the third term.
TREE : RTEE :: KEEP : EKPE :: SOLO : ?