Soz impossible
So you can restore it and get in it again
You can't you need iTunes.
If it is your iPod, then connect it to iTunes, and then click the 'Restore' button on the iPod Touch menu. This will wipe out old settings, and is a 'factory reset' which will make it as it was when it was brand new.
The below-mentioned ways to reset your iPad/iPhone password even. Methods to reset a locked iPad/iPhone without a passcode Using a Tool There are different tools available in the market, like Joyoshare iPasscode Unlocker, that can be used to reset any disabled/locked iPad/ iPhone/iPod without a passcode. It is compatible with all the latest models of iPad as well as all the versions of iOS. So it might come in handy even when you lose your iPhone passcode. You can reset the passcode with a few clicks effortlessly. Through iTunes If you had linked your iPad/iPhone with iTunes, you can use it to reset your locked device. Through iTunes, you can reset the passcode with ease. Through iCloud If you signed in to the iCloud in your iPad/iPhone any time in the past and had enabled Find My iPad, you can reset it without any passcode through iCloud. Through Recovery Mode If you didn’t link your iPad/iPhone with iTunes or iCloud, then the most feasible option is to try out the Recovery Mode. It can be very useful when you cannot reset your device with the steps mentioned above. There is no need to worry even if your iPad/iPhone gets locked as there are several ways to unlock it without a passcode. Say goodbye to the most common issue faced by various iPad/iPhone/iPod users. You can check the ways mentioned-above and go with the one that is feasible for you.
No, the iPad with 3G it is not SIM-Unlocked for multiple carriers, it is locked to AT&T. You may use Spirit jailbreak to unlock it and do as you wish with SIM unlock and so forth.
No—you cannot sync an iPad with iTunes directly on the iPad, because the iTunes app on iPad (or iPhone) is just for purchasing and playing content, not for device syncing. To sync your iPad, you need a computer: Windows or macOS Mojave and earlier: Use iTunes. macOS Catalina and later: Use Finder. Connect your iPad via USB (or Wi-Fi sync if enabled), then you can sync music, movies, podcasts, and backups.
No
Yes you just go to the itunes app on your ipad and then do what you want from there.
Just go to iTunes in you iPad
Yes. You don't need a computer to have an iPad. You will need a WiFi or 3G connection to download apps and music.
Install iTunes. Run iTunes. Import music. Plug in iPad.
yes