Distracted by other things: Passive Perception still apply?

Does the 5E Warlock spells known limit factor in Mystic Arcanum?

Speak With Dead spell, does the corpse need to answer truthfully or can it tell lies?

For the Teleport spell, can you go to moving things if you have an associated object?

Does a Swashbuckler add her charisma mod to initiative as well as dexterity?

Help action: can/must you specify which ally is helped?

Does the new Lizardfolk’s Natural Armor affect a Barbarian Unarmored Defense?

Can a Magic Initiate “Wizard” use Wizard spells scrolls and copy them in a spellbook?