Quantity:$1000US...Best method to make the largest and quickest return? On Which investment?

I have $1000US. I have 90 days, consistent internet access, access to multiple US and foriegn banks/institutions, personal cellular phone, and permanent US residence.
What investment will return the largest profit?

Be creative. Looking for a return of >12%.

Options or futures will give you the greatest leverage with the greatest risks as well.

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You really shouldn't try this. In the process of you trying to return $120 bucks, you have a great chance of blowing all of your money.

It depends on how much work you're willing to do. The best opportunities always involve the most risk and the most personal effort. I have a friend who is great at selling & making people feel he likes them... he can go out and buy a used car for $1000 cash, and then without fixing it up, resell it for $1500 or $2000. This kind of thing could easily be done on the weekends in 90 days, and many people don't report this kind of income in their tax returns.

If you're talking about little personal effort, and you're not an accredited investor, then buying call options, out of the money, on a company you believe will report very good news within 90 days, is your highest potential return. But it's high risk and you'll still owe taxes.