I just discovered this answer and question type of platform last night and thought that it could be worth sharing it here.
https://www.masmic.com?action=referral&referralCode=J3BFLTDA
Above is my referral link of the site and it will be great if you will be using it to sign up to the site. It is free to sign up.
As far as I can understand the site, there are two ways to earn Stellar coins there. One is by answering the questions and your answer will be chosen/voted. Second is that you have voted on an answer which is a chosen answer.
Also you can earn by referring others to the site using your referral link such as my link above.
All other details can be found on the site and feel free to explore, and learn more about it.
The minimum amount for withdrawals is at least 1 XLM.