Many questions very important based on Paypal Rules

Hello, I have questions regarding the projects :
1) I dont receive a notification when someone create a project, is it normal ?
2) When the project is accepted or not, the project owner do not receive a notification as well, is it normal ?
3) If I refuse to publish a project, can i select the reason or say why ? The owner of the project will receive a notification ?
4) If the project do not reach the target, what’s happen ? Where goes the money ? If the owner decide to keep the money anyway, is it possible ?
5) If the project achieve the target, what’s happen ? He will receive automatically the amount ?
6) When do i create an account to paypal to receive the payments ?
7) How can the project owner change/edit his project ? I see the « update » but is it that ? Because it’s written “submit for review”
8) What can be change ? Is it compliant with Paypal (period, amount) 8) What can he change ? 9) Will i receive an notification about this change ?
10) Paypal apply a maximum of 90days for a project, is it taken into account ?
11) A project owner can cancel a project during the project ? If yes, what’s happen ?
12) A project owner can cancel a project during the project ? If yes, what’s happen ?
13) Can i limit the number of projects for the same person ?
14) How can i share the project on Facebook ?
15) How can i invite a friend to a project by mail
16) Will the contributors receive an email when the payment is done, project achieved ?

Thanks