Construct an Enchantment Table.

Relieve a Blaze of its rod.

Construct a Dispenser.

Acquire diamonds with your iron tools.

Kill a skeleton with an arrow from more than 50 meters.

Construct one type of each tool (one pickaxe, one spade, one axe and one hoe).

Travel by minecart to a point at least 500m in a single direction from where you started.

Catch and cook a fish!

Construct a better pickaxe.

Use planks and sticks to make a sword.

Construct a furnace out of eight cobblestone blocks.

Punch a tree until the block of wood pops out.

Open your inventory.