In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

When does lucifer season 3 episode 20 air?
April 16, 2018

When did brazil win the first world cup?
29 June 1958

How many species of aloe vera are there?

580