I found that when I blew out a candle it made a noise... or maybe it was my breath that made the noise, but the noise only happens when the flame goes or is going out. I also find that my stove makes the same noise when I turn it on. 

I was fiddling around with some candles before a dinner party, and noticed that when the flames are put close to each other they are attracted to each other, and lean in towards each other. Why is this?