The maximum enchantment is level 30 but youll need 15 bookcases around the table to max it out. You can enchant items with anywhere from 1 to 30 xp. Typically you dont want to have e a lot more than 30 because if you die you lose all your xp. It may be a good idea to join someones map that already has everything set up so you can see it first hand.
2.does going back and forth on the minecart and rail count on the leaderboards ?
3.why do you go up levels on survival and what does it actually do for you?
im on level 70 and still dont know lol
Tagged Mobs Are A Great Edition To Console Versions!
2. Not sure.
3. Levels are used for enchanting. http://www.minecraftwiki.net/wiki/Enchanting