You can't but in the next update I believe you can.
Yes you can. Just get an diamond ore and place it in you crafting box and diamond will be made. Then craft your pickaxe.
With an iron pickaxe
find it and mine it with iron pickaxe or better
You need to craft it out of Iron Ingot and Sticks.
You get a pickaxe (any kind you can get) and start digging. Happy mining!
Yes you can grow cactus in mine craft Pocket edition ,cuz I have a cactus farm
No.
You may only mine Obsidian with a Diamond Pickaxe.
yes
You dig .
cant you ...............
no