Ranger-Hunter; Multiattack feature: How does it work with spells with “The next time you hit a creature…”

Does Mind Blank spell protect from all the effects of Feeblemind spell?

Does the caster immediately knows that the target makes his save successfully?

Q&A with Jeremy Crawford: Sneak Deflecting, Sleep spell, mark, Ring of Mind Shielding and UA Artificer release date – Dragon+

The jokes in a D&D campaign—even one run by the lead rules designer—have no bearing on the rules

Does the monks slow fall ability use their movement?