Coinbase Earn
Coinbase Earn allows you to earn free cryptocurrency by just simply learning about it. There are 3-5 videos you must watch and at the end there will be a quiz question. Each question earns you $2 and if you have several attempts to get each question correct.
To get started, just sign in to your Coinbase account. If you do not have one, use this link to signup: https://www.coinbase.com/join/alexan_tcn
Using that link will also earn you $10 in BTC after buying/selling $100 worth of cryptos.

Once you sign in, go to the bar at the very top and click the "Earn Rewards" tab.
A list of all available awards will show and you just simple click on each one.
EOS - $50

You can earn an additional $10 using this link: https://coinbase.com/earn/eos/invite/fdcv4z09
Completing the 5 quiz questions, will earn you $10. Then, share your invite link with 4 friends and receive $10 when they also complete the quiz questions.
Quiz Answers:
Q1: A blockchain protocol for fast, scalable applications.
Q2: Delegated proof of stake.
Q3: Fast, free transfers.
Q4: Stake EOS tokens.
Q5: Upgradeable smart contracts.
Stellar Lumens (XLM) -$50

You can earn an additional $10 using this link:https://coinbase.com/earn/xlm/invite/k6mqbxr0
Completing the 5 quiz questions, will earn you $10. Then, share your invite link with 4 friends and receive $10 when they also complete the quiz questions.
Quiz Answers:
Q1: A decentralized protocol that unites the world financial infrastructure.
Q2: Facilitating low cost, universal payments.
Q3: Transactions are fast, inexpensive, and global.
Q4: To issue, exchange, and transfer tokens quickly and efficiently
Q5: It relies on the cooperation of trusted nodes to confirm transactions
Compound (COMP) -$9

Completing the 3 quiz questions, will earn you $9. Unfortunately there is no invite link that allows you to earn extra for COMP.
Quiz Answers:
Q1: Earning interest on your crypto
Q2: Supply a crypto asset as collateral
Q3: COMP token Holders
Celo (CGLD) - $6

Completing the 3 quiz questions, will earn you $6. Unfortunately there is no invite link that allows you to earn extra for CGLD.
Quiz Answers:
Q1:A decentralized stablecoin that aims to be worth one US dollar
Q2:Decentralized and borderless
Q3:Open a CDP with Maker
MakerDAO (MKR) - $6 *Recently Added*

Completing the 3 quiz questions, will earn you $6. Unfortunately there is no invite link that allows you to earn extra for MKR.
Quiz Answers:
Q1: MKR and DAI
Q2: MKR holders
Q3: A crypto wallet and crypto collateral
This is a great/very easy way to earn some additional free cryptocurrency while learning about some great projects.