Are you on Mac? If so then do this.
Open it from your downloads folder and then it should give you a prompt where you have the option to click open, click that and then your game should open and start loading up.
I found them here
https://thats-not-my-neighbor.fandom.com/wiki/Chester%27s_Quiz
I went through a lot of searching on reddit and found some of the answers and then saw someone posted the link to the fandom wiki with all of the answers. Hope this helps!
And as for if they are correct I tried them and they were.
Hope this helps :)
When I first got the game I quickly found out that when you open it it stays on a black screen for a while then will eventually load everything up ( although maybe that's just me ) . If you haven't tried that possibly give that a try and see. Just try and be patient while it's loading though as sometimes it takes a hot min.