Stay underwater for 2 minutes.

Bounce 30 blocks upward off a Slime Block.

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

Poison a Witch with a Splash Potion.

Dry a Sponge in a Furnace.

Eat a Notch Apple.

Cure a zombie villager.

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

Kill a skeleton with an arrow from more than 50 meters.

Swim in lava while having the Fire Resistance effect.

Create an Iron Golem.

Smelt wood trunks using charcoal to make more charcoal.

Gather all 16 colours of wool.