ok...
i'll reveal 1st question first... one by one lah... b
patient...
vin.warrior & drifting guy got it right...
*pat pat their head*
Switch on switch A and B.
Leave it on for maybe 10~15 mins, sufficient tym for the lightbulbs
to be heated up. Off switch A.
Go into the next room; switch A, which you have just off, would be
the heated bulb which is off, switch B is the lighted bulb while
switch C will be the cool bulb.
