Kill a creeper with arrows.

Eat a Notch Apple.

Breed two cows with wheat.

Kill the Enderdragon.

Enter an End Portal.

Create and fully power a Beacon.

Construct a Nether Portal.

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

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

Dry a Sponge in a Furnace.

Catch and cook a fish!

Construct an Enchantment Table.