You probably have it on Peaceful Mode thats the only reason I can think of.
You might be on peaceful mode...
You might have to update your minecraft
Settings for MC.
on plants vs zombies it works for some and not for others sadly it doesnt work for me and hopefully it workes for most others but it works for some and doesnt for others!
The pocket edition of minecraft doesnt have crafting, therefore doesnt need one. Its a crafting table btw.
There is an option on the downloaded version that says "play offline" click that.
If you're talking about the smite enchantment, then no. Smite affects Zombies and Skeletons.
You place a chicken spawn egg in an anvil and rename it whatever you want to call your chicken
No. There used to be a glitch so they would work, but treyarch patched it so it doesnt work anymore.
All mods that dont add items/blocks to the game, or spawn items (cheat in anyway) will work
What do you mean? Minecraft saves automatically all the time, so I don't understand how that can be a problem.
No matter what system it doesnt matter okay.you probably need a better connection.
At the login screen, press options and force update. Then try again. If that doesnt work, try deleting %appdata%\.minecraft and change your password.