Coinbase recently released a new campaign that everyone can earn from.
You just need a coinbase account and possibly verify it.
Visit this link. (it's a coinbase.com/earn link so I don't earn anything from you doing this I am just trying to help out)
You can earn UMA and learn a bit about the project. You might have to be on a waiting list for a short amount of time. Just don't worry. You can either follow me to find the answers quickly on my blog or you can book mark this post :)
Below you'll find the answers to the campaign. I placed them here to make this much easier.
None of this requires a referral, however, if you don't have a coinbase account you can use my link to create one.
UMA Campaign answers
Answer 1 - Derivatives
Answer 2 - Liquidators and disputers
Answer 3 - All of these answers are correct
Have fun earning and learning :)
