well if you mean, someone will give you the cash and he use your funds i believe it is fair enough I know tons of people do so
yes you can do, like you can take money from your friend and transfer the funds to their account. Thats easy.
can you be a little bit more specific?do you want to give your online money to someone by taking cash?
Paypal Funds is actually real funds.. u can withdraw it.. how can some1 sell it ? unless u mean exchange it
yes you can he need to sell it , because maybe his country not listed in paypal and he make it with vcc or some thing like that , so he can't withdraw it