B, who belongs to China, lives to the immediate west of F, who belongs to Egypt and both of them live on the same floor.
Neither F nor the person who belongs to Nepal lives in Flat Z.
Only one floor is between F and H, who lives in the same flat as F.
Case 1-
| Floor | Flat X | Flat Y | Flat Z | 
|  | Person | Country | Person | Country | Person | Country | 
| 3 |  |  | H |  |  |  | 
| 2 |  |  |  |  |  |  | 
| 1 | B | China | F | Egypt |  |  | 
 Case 2-
| Floor | Flat X | Flat Y | Flat Z | 
|  | Person | Country | Person | Country | Person | Country | 
| 3 | B | China | F | Egypt |  |  | 
| 2 |  |  |  |  |  |  | 
| 1 |  |  | H |  |  |  | 
H lives immediately west of the person who belongs to France and both of them live on the same floor.
Case 1-
| Floor | Flat X | Flat Y | Flat Z | 
|  | Person | Country | Person | Country | Person | Country | 
| 3 |  |  | H |  |  | France | 
| 2 |  |  |  |  |  |  | 
| 1 | B | China | F | Egypt |  |  | 
 Case 2-
| Floor | Flat X | Flat Y | Flat Z | 
|  | Person | Country | Person | Country | Person | Country | 
| 3 | B | China | F | Egypt |  |  | 
| 2 |  |  |  |  |  |  | 
| 1 |  |  | H |  |  | France | 
A, who belongs to Italy lives immediately below I and immediately above E.
A, I and E live in the same flat.
Case 1-
| Floor | Flat X | Flat Y | Flat Z | 
|  | Person | Country | Person | Country | Person | Country | 
| 3 |  |  | H |  | I | France | 
| 2 |  |  |  |  | A | Italy | 
| 1 | B | China | F | Egypt | E |  | 
 Case 2-
| Floor | Flat X | Flat Y | Flat Z | 
|  | Person | Country | Person | Country | Person | Country | 
| 3 | B | China | F | Egypt | I |  | 
| 2 |  |  |  |  | A | Italy | 
| 1 |  |  | H |  | E | France | 
C lives immediately to the east of D and both of them live on the same floor.
Case 1-
| Floor | Flat X | Flat Y | Flat Z | 
|  | Person | Country | Person | Country | Person | Country | 
| 3 |  |  | H |  | I | France | 
| 2 | D |  | C |  | A | Italy | 
| 1 | B | China | F | Egypt | E |  | 
 Case 2-
| Floor | Flat X | Flat Y | Flat Z | 
|  | Person | Country | Person | Country | Person | Country | 
| 3 | B | China | F | Egypt | I |  | 
| 2 | D |  | C |  | A | Italy | 
| 1 |  |  | H |  | E | France | 
The one who belongs to India lives immediately below the one who belongs to Germany and both of them live in the same flat but not flat Y.
D does not belong to India.
Thus, Case 1 gets cancelled.
Case 2-
| Floor | Flat X | Flat Y | Flat Z | 
|  | Person | Country | Person | Country | Person | Country | 
| 3 | B | China | F | Egypt | I |  | 
| 2 | D | Germany | C |  | A | Italy | 
| 1 |  | India | H |  | E | France | 
The one who belongs to Nepal lives immediately above the one who belongs to Austria.
Neither F nor the person who belongs to Nepal lives in Flat Z.
| Floor | Flat X | Flat Y | Flat Z | 
|  | Person | Country | Person | Country | Person | Country | 
| 3 | B | China | F | Egypt | I |  | 
| 2 | D | Germany | C | Nepal | A | Italy | 
| 1 |  | India | H | Austria | E | France | 
Now, only G is remaining.
| Floor | Flat X | Flat Y | Flat Z | 
|  | Person | Country | Person | Country | Person | Country | 
| 3 | B | China | F | Egypt | I | Japan | 
| 2 | D | Germany | C | Nepal | A | Italy | 
| 1 | G | India | H | Austria | E | France | 
This is the final arrangement.
I belong to Japan.