I know that's not easy and not possible in just one day. I just thought if maybe someone has some good method for investing or something that brought him nice profit. I know it's always a risk, just courious to see what are the experiences.
To earn such amount in short time is really hard task. Either you want to risk your money and invest in Ponzi (not recommended method, but if you are early you will probably get away with it).
You can also risk it all and gamble. There is no good way of investing which will bring you gigantic interest like 70%, other than these two methods. Both are hit or miss.