100% return in one month? Just using the internet? Impossible.

That's one of those things that would be immediately, completely used up the moment it exists. A free lunch, basically.

In theory, you could get a few percent annualised return for nothing the conventional investment way, but I don't know how easy that would be especially with a small amount, and anti-laundering laws exist to (try to) stop you from doing it anonymously like that.

It feels like you might be hoping for a hustle, but you either need to deliver something of value right at the time of the transaction, or promise to deliver value and have an verifiable identity where they can come and find you if you don't. Because the other people with the money you want aren't stupid.

The same as always: sexual favors behind a fast food joint dumpster.

Don’t delete this after getting responses like you did last time. That’s a real jerk move.

"Using just the internet no interaction with people but keep it cash" wat

No time constraint. So it's very easy: you just follow a random person until they accidentally drop a $20 bill.

If I knew how to do that, I would do it with $10,000 or $100,000 and not $20.

How the fuck are you not gonna interact with people but have cash change hands?

You can't talk to people. You can't meet people, but you must somehow get money from other people. The fuck.

You also can't use banks or credit cards? How the fuck are you gonna meet someone online and get them to mail you $20?

Sell 40 $1 raffle tickets with a $20 prize, I guess.

you must keep it in cash

you don't have an address, a phone number, [and] you can't interact [with] people in public

using just the internet and an email

What do you expect me to do, download a $20 bill from the internet and print it??? I guess the only realistic option is to walk around busy places after everyone's left and hope you stumble upon someone's dropped wallet.

Remote roulette table. Bet it all on black.

Email a buddy to lend me $20 and leave it somewhere where I can pick it up.

Go back in time and buy Apple stock when it was $20 and sell when it's $40

Learn to draw dragons fucking cars

Find someone who will lend you 20 bucks

In the money value system? Buy and resell drugs, or prostitution.