Question 1199951
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<pre>

I can think that this parallelepiped represents a three-store building 
with the horizontal corridors at the second floor, going 
South-North and West-East directions and intersecting at the central hall.


Also, there is an elevator from the first floor (a garage) to the central 
hall at the second floor.


Then the South-North corridor contributes 2*4 = 8 faces;

     the West-East   corridor contributes 2*4 = 8 faces;

     the elevator             contributes       4 faces;

     and the building itself  contributes       6 faces.


The total faces is then     6 + 8 + 8 + 4    = 26.    <U>ANSWER</U>
</pre>

Solved.


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So, the answer depends on a description of the problem.


An adequate description &nbsp;ABSENTS &nbsp;in your post, &nbsp;leaving a room 
for different assumptions/interpretations/solutios/answers.