Creature is under effects of Non-Detection and Invisibility, would See Invisibility work?

Can Comprehend Languages understand Thieves’ cant?

Does Dissonant Whispers provoke an opportunity attack?

Does ‘incendiary cloud’ move directly away from you?

Are Wizards supposed to be able to take Earthquake?

I dunno who i should ask about this, but are Wizards supposed to be able to take Earthquake?

What if you want to protect a buddy with “help” action in melee, interposing between attacker and target?