Okay let us take a puzzle and try to solve it logically. It is important to think logically as most of the problems that we face in life can be solved logically.
Imagine a building. In the ground floor we find three switches A, B, and C. Climb to the second floor. Out of sight from the ground floor we see a unlit light bulb hanging (not a florescent tube).
Now the puzzle. Come down to the ground floor. You can fiddle with the light switches for all long as you wish. You can switch them on or off. Once you can go the second floor. You can examine the light bulb. Can you logically tell me which switch A, B and C switches lights the bulb? Try it out. This puzzle is open till the 31st of January 2011