(No riddle for the title of the topic this time ).

I'm back with another quizz, don't worry, it will probably be the last one before a very looooong time .

If you liked my first quizz, this quizz is still on Kahoot and is in the same spirit : easy/difficult serious/less serious questions. You can see the questions from the first quizz here.

How does it work ?
- There will 21 questions.
- 4 propositions per question.
- Only 1 correct answer.
- 20 seconds to answer the question.
- 1000 points are at play per question.
- The faster and better you answer, the more points you will score. You will get almost 1000 points if you answer correctly and very quickly. And you will score 500 points if you answer correctly but almost at the end of the countdown.
- If you make a mistake or answer after the 20 seconds, you will score 0 point.

There are only 50 spots available. Put the same pseudo as on Bitcointalk. Obvious cases of cheating will be deleted from the leaderboard.
There is nothing to win.

Url of the quizz : https://kahoot.it/challenge/0586850

Good luck.