Yes you can, Soul Exchange simply offers a monster on your opponents side of the field as a tribute, as well as any others you may control.
Only the monsters that battle with it, are affected by that effect.
It does target, it targets the monster you want to tribute. After Soul Exchange resolves, that one monster now has a lingering effect applied, that lets you use it as a tribute instead of tributing one of your own monsters.
Of course not. You cannot declare an attack on the opponent's lifepoints if they have a monster, unless one of your monsters has an effect that allows it to attack directly.You'll just have to deal with their monster using Spells or Traps, a monster effect, or by boosting the ATK of one of your monsters.
No you do not because the ones that you will used for the tribute is your opponent's monsters.
Clearing up some possible confusion - Soul Exchange doesn't 'take' monsters, nor does it do anything to them on resolution, except for set up a condition that says you can tribute it as if it was one of your own. You tribute it therefore in exactly the same way as if it were on your side of the field. There is nothing stopping you tributing it, and a monster on your side of the field, to summon a Lv7 or higher monster. In fact if you used 2 Soul Exchanges, you could summon a Lv7+ monster with both of them.
Soul Exchange lists no such requirement. If you wanted to tribute summon, you don't need a monster on your side of the field for their monster to 'take the place of', you are simply using their monster to pay the tribute cost.
A Tribute must be a monster you control, unless specifically stated on the card. Cards like Soul Exchange, and Chimeratech Fortress Dragon, specifically let you use an opponent's monster. But Malicious Edge does not say so, so normal tribute rules apply.
Yes the ultimate tyranno must attack all the opponents monster considered legal targets. This will consume all the monsters attack power for that turn so the attack cannot be directed to the player's life in the same turn.
Yes, you can activate Torrential Tribute whenever a monster is summoned. Here's a hint you can also activate on your turn to destroy your opponents monsters.
yes they can because penguin soldier doesn't say that you can only make monsters go back to your opponents hand it says "FLIP: You can return up to 2 Monster Cards from the FIELDto the owner's hand" it states the whole field not just your opponents side of the field. another monster like that is hane-hane
You don't catch monsters in Monster ranch. You tame them by beating the monster.
Yes. You'd activate and resolve both Soul Exchanges individually. After that, the opponent now has two monsters you can tribute in place of your own. So these two can be tributed for the summon of a Lv7+ monster.