what is money REALLY? Notes representing something else, right? What do they represent? National debt really, right? It's not like we're on the gold standard.... So if you win the value of $10,000,00 - what do you actually have that's real?
Let's skip question 2 as self evident...
Are you alive? Remember the classic 'brain a vat' conundrum - you can't know for certain you're not a brain in a vat being fed artificial impressions suggesting the 'life' you're living. It's also possible to conceive of what we imagine to be life as a dream or something less than real compared to something else more real (there are religious moralists using this argument to validate the concept of a good almighty power).
I know not perfect, but I tried....