Let's say I win € 5 million:

- € 500.000 to charity (carefully selected)
- € 500.000 each to my brother, 2 sisters and parents

Leaves me € 2.5 million. Initially I'd buy several German cars which I can't afford but am interested in (Audi A7, BMW 6er Coupé, Mercedes CLS-Klasse, Porsche Panamera) plus a Maserati Quattroporte and take at least half a year to test them all. After I'd have found my favourite car, I'd sell all the other ones and keep only that one. One expensive car is enough.

Then I'd spend between 500.000 and 1 million on an efficient passive house with a fancy bathroom like this one or that one.

The rest would go to the bank account. I'd reduce my working days to 3 (Tue/Wed/Thu) and spend the rest of my life travelling the world on my 4-day weekends.

I would buy a decently sized house, Buy a nightclub, Start a Cocaine dealing operation that nets me even more money, drop out of school and live life comfortably after that.

I'd never play the lottery. Such an unfulfilling way to become rich.

I take it you're tired of losing at it, no?

Really depends how much money we're talking here. If it was something lame like 1 or 2 million then I'd probably just keep it all, but if it was something ridiculous like $50 million then of course I'd donate a good portion of it. My charities of choice would probably be something that deals with Chrone's disease/Colitis (because I have colitis) and maybe one for some sort of cancer.

I'd buy a nice house (and tons of stuff for the inside) and 2-3 cars, the rest can go into high interest savings accounts.

You seriously like the Porsche Panamera? That's easily one of the ugliest cars ever made (see: Top Gear, among other car shows).

If you won the lottery and want a Porsche your best bet is a 911 Turbo S or 911 GT3 RS. 

I'm not interested in sports cars, I like limousines. And I don't need a British car show to tell me which car would I should like.

Give 15% to charity and use the rest to support my family, start a business, and probably run for some form of public office.

share some with family, then put half of what is left in a bank account with high interest rates for pension/retirement,
put rest in another bank account to use from when i need it.

otherwise i would get on with my education, then find a job. in other words live life as i would have if i hadn't won, just with a nicer car, better phone, better computer, no loans.

Well, if I would win a $150 million lottery, usually that is over 20 years, but I would take the cash option, which means you only get about $80 million. In Minnesota, you will pay 42% total taxes on this (as of a year ago), counting state, federal, and any other taxes. So on that massive $150 million you won, you will only actually have $46.4 million.

Making even 1% interest per year on this would be $464,000. So after taxes, you would have a good $250,000+ a year to just live a very comfortable life. I wouldn't need to buy a massive house or all sorts of cars. Just simply live comfortably on this interest. I would also continue going for my college degree, and attempt to get a job in statistics.