Answers revealed in the comments.
GAME 1
According to Google Frightgeist, what comic book character was the most popular Halloween costume of 2017?
GAME 2
Halloween is the first day of a three-day observance in Western Christianity known as Allhallowtide. What are the names of the other two days, which fall on November 1st and November 2nd, respectively?
hebspeaks 
Game one answer: Wonder Woman
Game two answers: All Saints Day, All Souls Day