Press right click button on the mouse.
You can fill the up with blocks or you can collect it using buckets.
You can right click on a group of blocks to pick up half of it, or if you are already holding it, you can right click on an empty inventory space to deposit a single unit.
8 cobblestone in a crafting table. Completely fill up the grid, but leave the middle space empty.
Minecraft does take up space on your computer, Like almost all games.
Yes but it doesnt remove and blocks.
Fill in 6 boxes with planks
if you are talking about the black square it is called obsidian and you dig a 1x4 hole that is 1 deep and you fill it with obsidian and on the edges you build up 4 with obsidian and fill in the top 2 blocks and strike flint in the bottom corner
No, they only pick up blocks that are in the world
Minecraft takes up approx. 200mb of disk space
Light can fill a room without taking up physical space.
Yes.
It depends on how many blocks you placed and how far you have traveled.