1: If a villagar is struck by lightning then it will turn into a witch and if a pig is struck by lightning then it will become a zombie pigman.
2:If a skeleton kills a creeper then it will drop any random music disc. You can also find music discs inside the chests of dungeons.
3: Zombies have a low chance of dropping iron ingots, potatoes or carrots. These means you do not need a village in your world if you want potato and carrot farms.
4: In a nether fortress there is a 25% chance that a skeleton would spawn instead of a wither skeleton.
5:Horse armour and saddles are uncraftable and can only be obtained through different dungeons, temples and even villages.