Construct a Nether Portal.

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

Bake a cake using wheat, sugar, milk and eggs!

Breed two cows with wheat.

Construct an Enchantment Table.

Kill the Enderdragon.

Use Shears to obtain wool from a sheep.

Destroy a Ghast with a fireball.

Craft and place a sign.

Use Riptide to give yourself a boost.

Deal nine hearts of damage in a single hit.

Smelt an iron ingot.

Use planks and sticks to make a sword.