Relieve a Blaze of its rod.

Craft and place a Flower Pot.

Create an Iron Golem.

Stop starvation using Rotten Flesh.

Wear a full suit of Iron armour.

Gain the trust of an Ocelot.

Cook and eat a pork chop.

Construct an Enchantment Table.

Play a music disc in a Jukebox.

Use a saddle to ride a pig, then have the pig get hurt from fall damage while riding it.

Enter an End Portal.

Kill a creeper with arrows.