Riddle for SoManyRooms

gistfile1.txt

12 people next to 12 numbered doors. A sign saying that there is one and only one safe door to exit.

Talking to each of the people they will tell you:

1) The safe door is either 1, 2, 3 or 4
2) All even numbers tell the truth
3) All multiples of 3 are liars
4) The safe door is either 4, 5, 6 or 7
5) #4 is telling the truth
6) All odd numbers are lying
7) The safe door is #8
8) Door #8 is not safe
9) #7 and #8 are both liars
10) The safe door is #6
11) The safe door is either 7, 10, 11 or 12
12) All multiples of 3 tell the truth

Graphics required:
Player
Door
NPC
Sign
Grass/whatever background detail