Ok, I'll be the genesis here... Some theoretical questions I could ask are:
- What is cold storage and how does it work?
- Difference between POW and POS?
- From a technical standpoint, what's a smart contract, where is a smart contract, how does a smart contract work?
It is very beginner questions.
You can find all the answer very easely on the internet.
In few words.
- cold storage : you disconnect from internet the system where yours privates keys are.
- PoW : your return is dependant of the electricity you burn - PoS : your return is dependant of the number of coin you have
- Samrt contract : the transaction is dependant of some external conditions