You visit the USA on a plane that was heading toward the twin towers on 9/11.
I wish for nothing.
Your wish is granted, but the person telling it to you explained in a lanuage you don't understand and also you become a vegetable and cannot use the information given to you.
I wish to die now and for my death to be peaceful, happy, quick and painless leading me to go to an equally peaceful, pleasant and awesome afterlife where nothing bad can ever happen to me or anyone/anything else aside from the person who is about to corrupt this wish.
Granted. You die by getting instantly vaporized in a nuclear explosion. In the afterlife, you get to do some of the things that you did in life. The same things, over and over, for eternity, eventually leading to true infinite boredom.
I wish for a functional hand-held liquid helium generator.
I survive using the ideas from the "survive the attack" thread.
I wish there was no such thing as homework.