You cannot yet. minecraft will probably have an update soon what will allow pistons but they are not currently in the xbox minecraft game.
yes
No there is only pistons on the computer version
there are no mods for minecraft on xbox
Nope.
Yes.
OF COURSE NOT! Redstone dust, redstone torch, pistons, and sticky pistons don't exist in minecraft!
No, the Xbox version of Minecraft is for Xbox360
yes there are aliens on minecraft xbox 360
There is only one version of Minecraft for the Xbox 360.
at this time there is no creative mode on minecraft xbox edition
Yes it is called Minecraft Xbox One Edition.
By looking at the xbox version or pc equivelent version you can use the link if you have it up to date. If you have an older version of mcxbox then look for key features that are missing and/or present, e.g pistons, or certain bugs that are easy to replicate.