Stars 180 tournament questions

I’m going to be setting aside $440 to try 20 of these 180-person SNGs on Pokerstars. Let’s assume I average finishing in the money 15% of the time, and make the final table 8% of the time. Here’s the payout schedule:

1st: $1,080
2nd: $720
3rd: $428.40
4th: $288
5th: $234
6th: $180
7th: $126
8th: $93.60
9th: $61.20
10th-18th: $43.20

so here are my questions, what are the chances of each of the following happening:

1) I win at least one out of 20?
2) I get a 100%+ ROI?
3) I get a winning, but not 100% ROI? (let’s say 6-99%)
4) I go basically even (5% ROI either way)
5) I have a losing ROI without going broke?
6) I finish out of the money 20 consecutive times and go broke?

[AlexHoops]

1) 20/180