Round table

I think the following questions will be of interest to beginner Heroes players: 1. How many shots does a Ballista have? 2. How can you prevent the defending infantry units of your opponent from exiting through a Bridge during a siege, while minimizing losses on the attacking side? 3. How can you "legally" find out what secondary skills (and not only) your opponent has, without revealing them? 4. If the fastest creatures in the armies of both sides have the same speed, who gets the first turn on the battlefield? 5. If the fastest creatures in the armies of both sides have the same speed (although in this example, it's not about speed), who gets the first turn in a castle battle (all scenarios)? Please answer!