Whats the best way in invest money, with the most interest in the shortest time?

Give it to me. Yeah, that's the ticket.

Why not try a ponzi scheme? NOT!!

poker

try INGDirect.com and HSBCDirect.com

Really depends on your risk profile.

FTSE index gains can be over 10% per year. Individual stocks can go up 10s or 100s of percent in a year (or down).

Building society/Bank accounts/Bond rates are not much above inflation ~5%

If you have lots of capital and are not risk averse, you could try spreadbetting or CFDs, although it's very risking!

If not, you could stick your money in an tax-free isa (cash and shares as well).

Hey, don't invest money that you can't afford to loose! That's right - loose. Best way to make money in the market is with good, solid companies and mutual funds across a diverse platform so that you spread your risk. If you are young, you have a longer amount of time to invest in the market and can be more aggressive. If you are looking to double your money in a month - forget it - you know the old adage that a fool and his money are soon parted - it's true. Believe me, if it was easy, everyone, yes everyone, would be doing it! It's not! It's not for big money investors and it sure isn't for someone who hasn't been in the market and is looking for a quick fix. There are many who will take your hard earned $$$ and leave you with naught a shoulder to cry on.

Put your money in the bank or in a CD for 3 month or whatever is going now so that you will be sure it will be there in the three months or whenever you need it.

Now if you want to take a more mature stance, you can start by investigating some of the larger fund companies: Fidelity, Janus, Vanguard and so on and maybe a good thing for you to get into would be one of the new lifestyle funds that will be managed for you for far less then if you were to individually buy and sell stocks.

Vanguard has a very good lifestyle fund and I think the longest out is 2045 - so it is most aggressive. Buy and hold is the way to go - believe me - you are NOT gonna get rich quick trying to flip something on your own; you will most likely, unless you are VERY lucky, loose most of it.

Good luck!

buy a lawn mower and have some kid mow lawns for you all summer. You will make more by the end of summer.