HOW MUCH DO YOU KNOW ABOUT AVIATION? We will find out...

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This challenge has 12 levels and a total of 102 questions. They are:
Level 0 - Piece of cake (If you are an avgeek you will feel that these questions are humiliating you)
Level 1 - Easy
Level 2 - Novice
Level 3 - I care about aviation news
Level 4 - Intermediate
Level 5 - Harder
Level 6 - Even harder (ATPL level theory starts appearing from here)
Level 7 - Advanced
Level 8 - Guru (good luck googling starting from here)
Level 9 - Insanity
Level 10 - God
Level 10+ - Maverick (only 1 question in this level)

The full mark is 536, and there is NO pass or fail! There is NO pass or fail! All questions in this quiz carry the same amount of marks as the level it is in unless otherwise stated. For example, a Level 3 question carries 3 marks. The exception is Level 0 (each question carries 1 mark).
Mark descriptors (assuming you did not search for info as you play):
0 - 20 "They are just metal birds I don't care" passenger
21 - 65 Somewhat observant passenger
65 - 100 Really observant passenger
101 - 165 Regular aviation enthusiast / flies very often
166 - 260 Somewhat serious aviation enthusiast
261 - 360 Really serious aviation enthusiast
361 - 425 Major avgeek, or really experienced pilot
426 - 500 Belongs to the skies, born in it, moulded by it
501 - 536 Are you sure that you didn't cheat at all while playing this?

Author: @pilotization (Telegram)

This quiz is just for fun only! All questions have been fact-checked to the best of knowledge. Still, you ought to not use the questions for pilot training (unless explicitly stated that the question is sourced from live exams or material, or written directly according to official documents). Even then, I hope that you can learn some facts and concepts from playing this challenge :)

A small number of questions in this quiz are adapted from elsewhere and appropriate credit will be given.

This quiz is inspired by the "Hong Kong Geography Expert Challenge" by Xotarios.
Shoutout to HOVIS, FlightDetent and QA1 on PPRuNe for helping with the fact check!