Binance I think it also offers it, but with binance you earn for sure the cryptocurrencies or you just enter a draw for answering the questions correctly?
And in the other platforms? can you win cryptocurrencies? or just answering correctly gives you the option to enter a draw?
Hi, I actually keep track of those opportunities. You can find a full list of learn & earn opportunities here.
Apart from Coinbase, you can currently earn free crypto from these quizzes at Cake DeFi (2 quizzes for $5 each, mostly DFI), Bitpanda (€5 in BEST), Coinlist.co ($6 in XTZ), and Revolut (€4.50 in DOT - might be over, not sure). The linked site has the full instructions and all of the answers to the quizzes.
The Binance quiz rewards are always gone instantly. Coinmarketcap also has some, but it's a lottery to get a reward, and the chances of getting the reward are really low.
I have tried coinmarketcap quizzes once and as I have read, they are not lottery based but it was first come first serve and also depend on your scores. It was their airdrops are the one that is lottery based or works randomly. I rarely get a free crypto there.