clinton_ says:

First u have 2 decide how much return u want in a year?
Suppose u r willing just 6 % return on ur investment then u invest in govt. bank deposits-these r totally safe & liquid.
But if u want to earn 25% or 50% in a year,then u have2 search avenues which gave such returns last year & expected 2 repeat the results.
So post such questions in yahoo answers2 know in which part of world u can double ur money in what?
then evaluate the answers regarding feasibility, liquidity and safty.
i know here in my town i double my money in 2 years in property investment, so if u want2 join u r welcome.

gregory_ says:

You can do all at once by getting a fund that has multiple names like lifestyle/target fund ect. Generally they have the year in which you are expected to retire. The fund then changes ratios of stocks and bonds as it gets closer to that date. A stock broker over the phone can get you those seperately. If you want U.S. federal bonds, you can go to http://www.usbonds.gov.

instant-messaging says:

First, you shouldn’t be investing unless you are debt-free and have 3 to 6 months expensives SAVED. For more complete information visit daveramsey.com and read his book The Total Money Makeover. Good Luck