Try clicking options in the log in menu and do "Force Update". If that doesnt work, try going into your files, search "%appdata% and delete your .minecraft folder. Then go to minecraft again and it should re-install all the updates.
you cant... you can only try and hide it. like under ground..
Mobs can only jump 1 block, so 2 blocks should do. Don't forget to make ledge to prevent spiders from climbing up.
You can grow pumpkins which can be used to make pie (suger, egg, and pumpkin), and can be used to make jack o lanterns which are glowing pumpkins that can be placed underwater (pumpkin and torch) and you can also wear then on you head to prevent endermen from attacking you (however it provides no protection from damage).
A corpse passes gas both through their mouths and/or rectums. Just like when the Person was alive gasses build up inside their bodies and will release through the mouth/rectum. This is why most Funeral Homes will actually sew shut the inside of the deceased's mouth to try to prevent this from happening during a Wake, Viewing, or Funeral.
The same way you do on singeplayer - right click the chest. However, if you are referring to a bukkit server or any server with plugins and the chest is locked, there is no way to do it yourself. This is to prevent theft and it works very well. Additionally, there may be server lag. This means that there may be a delay before the chest items appear. Do not worry, the lag will go away soon (hopefully)!
The answer is: "how is this happening"?
prevent the occurrence of prevent something from happening
You can't prevent this from happening because earths weather does what it wants to and you can't control the weather so you can't
One way to prevent this from happening is using a different computer. Lots of stress can be put on the computer if it's running the server, and your game at the same time. This would be like running Minecraft in three different windows.
you cant prevent storms from happening that's impossible.
You can't prevent it from happening, because it's hereditary.
what must be done to prevent this from happening
You can't prevent it from happening, because it's hereditary.
yeah
stay at home
prevent
vaccinations