There are 3 ways, 1) when you get half way round the playing field 2) through two consecutive no balls 3) through obstruction, where a fielder gets in the way of the batter.
To get 1 rounder you need to run around all 4 bases in 1 hit and to score half a rounder you have to run around the 1st and 2nd bases so that you come at 3rd base for half a rounder point.
You can score runs by obviously gaining rounders. Pointcs can be awarded for penalties, firstly for blocking the runner, or secondly for the bowler doing no-balls. This is all I know for the moment,...
yes in most games. when you hit the ball if someone catches it your out. or if you don't make it round the circle in time (like baseball) but it can vary.