So the circle restarts at the position of the person who made the raise? (And I know this can happen a maximum of three times.)

Next question.

Let's say someone raised from 10 to 20 on the initial deal, everyone called that 20, and we get the flop.

Now, it's time for another round of betting on the new cards.

1. Is the minimum bet 10 or 20?
2. Is first action the person who did that last raise, or is it the original first-action-guy from the beginning?