Been testing out coinbase and doing a few of their tutorials on Crypto.
The “lessons” are simple, three multiple choice answers and you can get them wrong as many times as you want (as i did). You get $10 for each of the lessons you complete which i assume comes from the marketing department of which ever crypto. Its available to both new and existing CB users. Crypto transfer is instant after you select the right answers. Easy money for an afternoon on the sofa.