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Freely display a metal vase and pour water or any other liquid into it. Cover the vase with a piece of cardboard sheet and turn it upside down. When the cardboard sheet is removed the water does not spill out defying all laws of physics. You can make the water to spill out on your command...

Ok, so imagine you are with your friends and someone asks you to do that voodoo you doo so well.   You ask for a pen and you place the pen behind your cell-phone. And you say "look, it's sticking to my phone isn't that interesting?" They instantly catch on that your fingers or thumb is holding it into place. So you take away your hand, "nice..