Play it in survival mode or creative mode. Don't press the multiplayer mode.
You get a mod, such a Single Player Commands.
install the aether mod
yes there is a mod for it
/op [player name] make player a mod /deop [player name] make an already mod not a mod
It is not possible unless you download the single player command mod.
do /clear inventory or just /clear
Yeah for a mod that spawns animals anywhere try SPC (Single Player Commands).
Try a mod. You could use InvEdit or SPC (Single Player Commands).
If you mean for the Bukkit Server, then no, but there is a really good flight mod packed into this one called "AdminCMD". The dev is trying to make it more like the single player flight mods. His fight mod may bring noclip with it in the future.
There is no cider in Minecraft unless you have a mod.
you can't make a pencil in minecraft, but there mite be a mod for it.
You have to have a mod (modification) to make a cannon. It is not in vanilla minecraft.