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

@JeremyECrawford Hi Jeremy, just wondering about the Speak With Dead spell. Does the corpse need to answer truthfully or can it tell lies?

— fiend_138 (@fiend_138) December 13, 2016

Must a corpse be truthful if you cast speak with dead on it? The second paragraph of the spell answers this question. #DnD https://t.co/EUC3r7jKwc

— Jeremy Crawford (@JeremyECrawford) December 14, 2016