Forum:A few questions for now

These are a few situations:

1)Turn player's LIGHT monster attacks an opponent's monster and activates Honest's effect. Can the opponent activate Waboku or Divine Wrath or Reverse Trap or Light-Imprisoning Mirror?

2)Turn player's Stardust Dragon attacks an opponent's Six Samurai.The opponent attempts to save his Six Samurai by destroying another Six Samurai.Can turn player use Stardust to stop this?

3)Turn player's Gladiator Beast battles an opponent's Gladiator Beast.Both are not destroyed.Who gets to special summon first?

4)When Stardust is used to negate the effect of The Six Samurai - Kamon ,can the opponent destroy another Six Samurai to protect it?

5)How do I tell cost and card effect apart?This is to know which card works for Dark World cards.

6)How do I determine if the Special Summon of a monster can be negated by Thunder King Rai-Oh ?Is this same with Royal Oppression 's ruling?

7)How do I determine if a card targets?