Befriend twenty stray Cats.

Name a Shulker Box with an Anvil.

Build a tower of Scaffolding that reaches the maximum build height.

Use Riptide to give yourself a boost.

Use a Dried Kelp block as fuel in a furnace.

Using the Frost Walker boots, walk on at least 1 block on frozen water on a deep ocean.

Dye your bed a different color.

Poison a Witch with a Splash Potion.

Use an Elytra to fly through a 1 by 1 gap while moving faster than 40 m/s.

Respawn the Enderdragon.

Create and fully power a Beacon.

Cure a zombie villager.

Smelt wood trunks using charcoal to make more charcoal.