What check would you make to realize an NPC in disguise?

Can unconscious creatures be counted as objects?

Battle Master fighter Evasive Footwork does it only last 1 round?

Mines of Madness Hug Hug

Can you shove with Polearm Master and trigger an Opportunity Attack?

If a PC becomes undead, can resurrection work if the undead PC is killed?

Please clarify for rangers selecting humanoid favored enemies