|| To Digi,|
There are many "database" in technical terms of computers, and I wanted to know which one you saw.
You mean you saw the contents in the apk file, right?
I basically can't answer about the contents in the apk files because it will be hints to illegal people.
The data you saw are removed ones. I just made "Which is Yoshida?" for Japanese at first, and several years later I translated it to English. But I noticed that some of the questions were not proper or interesting in the other languages or countries, so I turned some questions disabled or only enabled in Japanese.
Now, I completely removed the questions even from the Japanese version because some strict people might abuse me if they find the questions with using tools.
About the question 40, I think you saw a little bit old app. Get the latest version from Google Play, and you'll be able to play it.