Puzzles - Logical puzzles

13.
Answer
:
A
Explanation
:
[NIL]

14.
Answer
:
E
Explanation
:
In each row, the left hand grid is symmetrical around a vertical axis, the central grid is symmetrical about a horizontal axis, and the right hand grid is symmetrical about a diagonal axis, running bottom left to top right.

15.
Answer
:
Carriage
Explanation
:
The Carriage = 2, the Car = 3 and the Bus = 6