The list come from the quizzes made by PSTSCCH. Actually they are not 1000, but 999. The word "a" is missing. Verbs are in the infinitive form.
Edit: time updated to 45 minutes.
Pandora 49's all 100k cities on the world map, Stewart's Counties of the USA and Cringe Dragon's 1,000 largest cities there are more than 999 answers so it's not the limit
I'm wondering this too. I was making a quiz and got to 500 answers, with about 30 to go, and it would not let me add any more. Frustrating to learn that so close to the end, and now I discover this quiz. Maybe the limit has been reduced since this quiz was made.
I like the fact that the answer includes one, two, three, four, five, six, seven, eight and ten, but not nine. what did this poor number do wrong?