I can't! I've been trying since I was a kid and now, aged 23, I still haven't figured the bloody thing out!
I also did it when i was a kid by peeling the stickers off when i put them back on so it looked like i had solved the puzzle my parents were really proud and full of praise ha ha.
My new record is now 1:27 , and may improve soon. I've been brushing up on some algorithms and finger tricks all day. Not much else you can do sitting at a naval airfield waiting for the cloud to lift (which it didn't so I didn't get to go gliding ).
9.35 seconds. Avg around 15 seconds. Check: http://www.worldcubeassociation.org/results/index.php And: http://www.speedsolving.com And: http://www.speedcubing.com
Since I started this post, I've reduced my fasted time to 29 seconds, which I'm proud of. But, I've lost one piece, so haven't been able to do any cubing in months.
I solved Rubik cube many times in past (10 years ago). I tried to do it some time before, and it took me hour. But at last I did it, and now I am able to do it without problems. But I am not doing it in short time to win some competitions.