If you understand the process, those numbers should be super easy to calculate and can immediately make sense, sorry somehow words are ambiguous but numbers are clear for me.
If you understand it, please fill out the numbers for Q2-Q5 thanks.

Thanks for the reply. derivs.ftx.us does allow u.s. residents to trade futures. I believe the fee structure for futures are very confusing. Especially given the leverage, and shorts I have no idea what the fee terminologies is referring to what, if you could please answer specifically to the numerical questions above (Q2-Q5) assuming the most expensive FTX fee table. Thanks. 

Sorry the terminologies are extremely confusing and a numerical example can help a great deal.

1. What is the cheapest-fee exchange trading crypto futures for U.S. residents, is it Binance or FTX (with 20X leverage), really confused about the terminologies and fee structure?

For quarterly-dated futures:

2. If I want to long 1 unit of ETH-0325, currently trading at $3200.2; 2a. What is the precise amount I need to put in to long? Is it 3200.2? or Is it 3200.2 divided by 20? 2b. What is the fee associated with this transaction?

3. If I want to short 1 unit ETH-0325, currently trading at $3200.2; 3a. What is the precise amount I need to put (up-front) to short? 3b. What is the fee associated with this short transaction?

For perpetual futures:

4. If I want to long 1 unit of ETH-PERP, currently trading at $3162.0; 4a. What is the precise amount I need to put in to long? Is it 3162.0? or Is it 3162.0 divided by 20? 4b. What is the fee associated with this transaction?

5. If I want to short 1 unit ETH-PERP, currently trading at $3162.0; 5a. What is the precise amount I need to put (up-front) to short? 5b. What is the fee associated with this short transaction?

Thank you very much indeed.