I want to keep it challenging. It leaves more opportunities for people to win. It's not ideal if someone answers all the questions correctly in the first day.
I'm selling it as an ebook on Amazon. I've done some marketing on the US and UK websites. I'll be promoting it again soon. It is very hard to get attention. There are millions of ebooks out there. Many new ones are written by AI.
I definitely agree on the challenging aspect!
I could imagine it's not that easy to be seen, I'll definitely promote it mouth-to-mouth!