Yeah. You just need to set up the mail accounts on the iPad and have the iPad connected to the wifi.
It depends on the type of data, but email is generally the easiest way.
No. The YouTube app comes with the iPad standard.
You cannot delete apps without losing the associated data. The app space and the data are essentially one.
by sending it by email
Email it to the iPad's email account.
It can be. The iPad can connect with virtually all types of email servers to allow you to send and receive.
Many apps have copy/paste functions on the iPad. You cannot paste photos, music or other data files into an email message, since the Mail app does not have access to those apps' data. To send a photo, go to Photos, click the photo and use Send via Email.
yes
There are about 3 or 4 places that offer IPad data plans. You could check your local AT&T or Verizon's service and request the iPad data plan for your iPad.
M1 in Singapore has data plan specials from time to time.
The easiest way is to email it to the iPad.
An iPad case is basically just that, a case for your iPad. They are used to both protect the iPad from damage as you move it or store it. There are also iPad cases that can act as stands so that the iPad can sit upright for watching movies or working on it without having it lay flat.