You could have given more information regarding the quiz before going ahead straight forward, i understand you're a newbie and possibly have nothing to offer than also learning together with everyone, but having more contents information regarding it could also serve a guide to everyone giving answers, here is my own trial.
Q1)When was the Genesis BTC Block mined?
03 Jan 2009
Q2)Halving occurs after every _____ Blocks.
210,000 blocks are mined
Q4)What is the maximum supply of BTC that will ever exist?
21,000,000 bitcoin
Q6)What hash function does BTC use.
SHA256
Q7)Which type of BTC address do you use.
Most often segwit address
Q9)What is the best exchange in your opinion.
Decentralized exchange
Q10)Are you a dev?
No