- Bet on tails
- It doesn't matter, it's still 50/50
- Bet on heads
A#13: Seriously, if you chose anything other than "It doesn't matter, it's still 50/50" you need to go back to elementary school--and this time pay attention. Of course, if the question didn't state "Neither of you is cheating and the coin is fair," we might be having a different discussion here. But it's a fair toss and coin. Past coin flips have nothing to do with future ones. There is an equal (i.e., 50:50) chance the coin will come up heads or tails.
All-in for now...