@RodneyWade2Does this mean that every 8 hrs you automatically complete a long rest if you have spent less than 1hr of that time fighting? combat or other strenuous activity – travel, any work, etc. IIRC, you can get the benefits of a long rest only once per day.

— Mike Mearls (@mikemearls) June 18, 2015

@RodneyWade2Thanks! How much of that 8hrs do you have to spend asleep? 6hrs? (ignoring elf trance) PHB says no more than 2hrs light activity 6 hours seems fair

— Mike Mearls (@mikemearls) June 18, 2015

@Shippendale @JeremyECrawfordWhat is the rate(in feet)of descent that a falling creature make in a round? Some spells says slow down to 60ft
this is a handy tool – http://t.co/gxi9ZINxNw

— Mike Mearls (@mikemearls) June 17, 2015

A useful tool for all DMs, especially those with players of aarakocra: http://t.co/gxi9ZINxNw

— Mike Mearls (@mikemearls) June 17, 2015

@unclefunsoncan a caster knock a creature out with a spell or only melee attacks can knock someone out? spells lack the control needed for that, IIRC

— Mike Mearls (@mikemearls) June 17, 2015

Writing? Capture a character with a tagline. Example: Menacing fantasy guardsman saith: "‘Nice doggie’? There ARE no nice doggies."

— Ed Greenwood (@TheEdVerse) June 10, 2015

@AbyssionKnightFor Find Steeds intelligent mounts, since they understand and obey you, does that mean you can control them and let them attack? they can attack, but keep in mind that Int 6.

— Mike Mearls (@mikemearls) June 16, 2015

@CotRD_MarvenIs a corpse affected by Speak with Dead considered a creature in regards to other spells such as Zone of Truth? i'd say no – isn't a true creature, just a fabrication of its memories

— Mike Mearls (@mikemearls) June 16, 2015

@JeremyECrawford Can my Rogue's Assassinate cause my Wand of Magic Missile to crit against surprised creatures?

— Kevin B (@kevinaskevin) June 16, 2015

No, since only attack rolls can score critical hits. https://t.co/tHhKtoNcKB

— Jeremy Crawford (@JeremyECrawford) June 17, 2015

@kevinaskevin Assassinate skill sez “any hit you score against a creature that is surprised is a crit hit” Does ‘score’ mean attack roll?
"Score" has no special meaning in that context. The critical hit is part of the rule on attack rolls (PH, 194).

— Jeremy Crawford (@JeremyECrawford) June 17, 2015

@kevinaskevinNothing I read on PHB 194/6 sez crits are exclusive to attack rolls. I get if they are but I just don’t read it that way.
That's the intent, and why the rule is under the heading "Attack Rolls."

— Jeremy Crawford (@JeremyECrawford) June 17, 2015