Question 2

There's 2 rooms, Room A & Room B...
Room A, there's 3 light bulbs, (1) (2) and (3)...
Room B, there's 3 switches, (i) (ii) and (iii) which is for the 3 light bulbs at Room A.
You cant see Room A from Room B and vice versa.

Question : How do u find out which switch is for which light bulb?? if u can go into each room once..

* if u r interested in wat's e ans, ask me... :)