Place 9 fully explored, adjacent Maps into 9 Item Frames in a 3 by 3 square.

Defeat an Elder Guardian.

Use the Totem of Undying to cheat death.

Use a Dried Kelp block as fuel in a furnace.

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

Use Riptide to give yourself a boost.

Kill a mob next to a catalyst

Have all 3 froglights in your inventory

Push a piston with a piston, then pull the original piston with that piston. [Bedrock Only]

Use a hopper to move an item from a chest minecart to a chest. [Bedrock Only]

Use a Grindstone to get experience from an enchanted item.

Give someone a suspicious stew. [Bedrock Only]