Towards the end of each month we compete against others around the world in an online quiz, where you have to guess the answers to questions like “how many piano tuners are there in New York?” or "how many calories do you need to feed a chicken in order to produce one calorie of meat?". Estimating scale and putting numbers on things is a trainable skill, one that is very useful for EA-related questions.
More info: https://www.quantifiedintuitions.org/estimation-game
Theme for this month: 
The game is fun and often sparks discussions, and it takes ~45min. You don't need any prior topic knowledge and no preparation is required ( If you want to be hardcore, you can use Guesstimate: https://www.getguesstimate.com/ ).
This is an online event. Meeting link:
https://meet.google.com/gwg-bkwn-mbv