You can buy moneypaks and redeem them on your account if verified. If not, you can have someone else redeem them tor you
Once you add your bank card you will be able to make purchases and the payment will come directly from your bank account through to paypal then to the recipient. If you want actual funds in your paypal account then there is an option to add funds VIA your bank card/s but it is unnecessary if you have your cards already added.
Add debit/credit card to pay instantly. Or if you add bank account you can withraw/deposit money from/to your bank
It depends on the country you live in and the type of money source you have (for example credit card/bank account/none of both)
The easiest way for me is to go to a local gas station or pharmacy story and buy a Paypal mycash card. There's a 3$ fee for any amount from 20$-500$ but it's a simple way to get cash onto your Paypal. Goodluck!