1. No ( you can make 3 and above if you have mc edit filters by sethbling )
2. 7.1 because if you jump it will decrease 0.2% of your hunger so 0.2x7 = 1.4+1=1.5 or 1 half or you can put this way 7 jumps
3. false ( Cookies just recover small amount of hunger bar (1 hungerbar) to make cookies you need 2 wheats and 1 cocoa
4. Well, Redstone bud switch do is update the piston statement from false to true what soever around that piston get updated, block update is something that is updated eg. placing blocks, destroying blocks, cooking in furnace, sleeping
5. false its Enderpearls, netherportals, the end portals , /tp command
6. No, you cant hit enderman using bows
7. Mobs attacks and can break blocks that can break using bare hands
8. Notch in game name is white because white is his favorite color i think :O
9. no, its diamond pickaxe ( enchanted eg. enchanted diamond pick with efficiency X because V is 5 = V give you 250% fast so X = 10 = 250x2 = 500% faster so yeah efficiency )
10. false, it doesnt matter what difficult or gamemode you are it still drop the same amt of xp and the amt is 20000 - 10 drops of 1000 experience, one drop of 10000 experience = 1 player will be level 78