What would you do if you won 20 million dollars?

share it with my family and closest friends

buy a masion. or my own private island. and adopt all the little cute puppies and kitties with no homes.

Travel
Pay for my son’s education
Buy a moderate size house, nothing fancy
Have more children
Adopt one
Give to charities and people who need it most
Start a business

Invest 10 million in gold. Stash it in 20 locations worldwide like Lithuania, Luxemburg and other "non-touchable" countries. So save your gold people. Invest another 5 on low risk returns. And then go on a 2 months trip. When I come back, pay off all my friends and relatives debts and buy a houses in San Diego, San’t Martin and Canada. But I would mainly live in San Diego. And then take lessons in piano, french and surfing. Get me some sweet and smart lips, and buy my daddy a Mercedes.

Buy a 20 Million dollar car.

Try to keep it secret that I was rich for as long as possible.

There’s a lot that can be done with 20 million but if you’re not careful, you’ll wind up with costs stemming from what you purchase. For example, a million dollar mansion might sound nice till you get the $50,000 property tax bill every year well after you’re spent your winnings. Likewise a yacht involves maintenance, slippage fees, insurance and crew costs, mercenaries to fight off the pirates etc.. Doesn’t take much for that 20 million to evaporate. If you use the money wisely, you can do things like set up offshore trusts and corporations so that you only get taxed on what you actually pay yourself to keep IRS happy and still have the use of everything that you have the company buy for your use. You can register the offshore company as an insurance company provided you put $250,000 into escrow and then you can write your own health insurance, car insurance, home insurance etc., you would still sell the risk on in the form of derivative securities just as real insurance companies do but you get to set your own terms and you won’t get turned down.