There is a room with no doors, no widows, nothing and a man is hung from the ceiling and a puddle of water is on the floor. How did he die?
Statements:
All doors are roofs.
All entrances are doors.
No floor is a roof.
Conclusions:
I. Atleast some doors are floors.
II. No door is an entrance.
A room has 8 doors. In how many ways, a man can enter in the room through one door and exit through a different door?