It's pretty simple really... you tap it. that is all you really can do. And it won't open if they is a block covering the top of the chest
you tap on it
Yes you can grow cactus in mine craft Pocket edition ,cuz I have a cactus farm
No.
yes
You dig .
cant you ...............
no
With an iron pickaxe
Tap it
No
theederscrolls
find it and mine it with iron pickaxe or better