You are unable to craft command blocks in minecraft, but if you have cheats enabled on your singleplayer world, you may type /give {player} minecraft:command_block
YES
yes
To place blocks in minecraft, right click. To destroy them, left click.
You shift click on the block and place it where you want it
Redstone blocks? You need an iron pickaxe.
Redstone blocks? You need an iron pickaxe.
keep it in a chest
keep it in a chest
I don't know of any cheats to get the crown. It took me a year to get mine.
you can find it in a chest
Redstone blocks? You need an iron pickaxe.