Since that's illegal, probably not
Yes, most Minecraft servers are safe. If you stay with the more popular ones, you'll be fine.
There are some good ones at minecraft forums
You can only grief whitelisted servers, which usually feature many complex buildings and models for you to destroy for a few kicks.
You need mods. I would look on YouTube.
no
There's no official friends list in Minecraft, but you on special servers there are plugins that enable you to add friends.
no try clash of clans
find it and mine it with iron pickaxe or better
Minecraft servers cost money to run, it's not likely someone will give you a server for free. Servers require a computer, internet connection, and electricity and all of these cost money.
You can not find milk in Minecraft. Rather, you must craft a bucket and use it on a cow's nipples.
ina jungle