Honestly, you should just have like 200 answers for these types of quizzes. Making them so short gives people the insentive to want to beat it, and it takes away from the fun of the quiz.
Had been doing this for like 5 mins and I got to 49, had time to realise that I needed to write 50 to win, typed 60 by accident, cleared it, went and typed 60 again, and my time ran out. Hairs were pulled out.
I am a 11 year old who plays NitroType (https://nitrotype.com/) it is a game to vs people and bots at you level, now other way i would've completed this quiz. I did it with 1 second left!
50 numbers in 8 seconds, 50/8=6.25
6.25 numbers per second
maybe say in the description to start from 1