Kill a Mob while wearing the same type of Mob Head.

Dye your bed a different color.

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

Tame an Ocelot.

Place a fully explored Map into an Item Frame.

Defeat an Evoker.

Befriend five wolves.

Tame a Horse.

Brew a potion.

Have an Allay drop a cake at a note block

Apply and remove Wax from all the Copper blocks!!!

Kill a Pillager Captain.

Ring the bell with a hostile enemy in the village.