Playback serverIf a title won’t play, switch servers.
Numberblocks
Season 8 · Episode 12
Double Doors, Double Locked
5.05mSeptember 1, 2025
It's the double doors challenge! How will the Numberblocks solve Fifteen's puzzles?
Episodes
- Episode 1The Third Button
- Episode 2The Great Bug Race
- Episode 3The Big Picture
- Episode 4Space Repair
- Episode 5Capacity for Magic
- Episode 6How Many Smoothies?
- Episode 7Odd Block Club
- Episode 8Five Makes a Wish
- Episode 9Number Rescue, Go!
- Episode 10The Best House Band in Numberland
- Episode 11Double Duets
- Episode 12Double Doors, Double Locked
- Episode 13The All-Knowing Nine
- Episode 14Subtraction Somersaults
- Episode 15Tenpin Tournament
- Episode 16Five's Super Sorter
- Episode 17Back in the Box!
- Episode 18Five's Fruit Festival
- Episode 19I'll Vote for That!
- Episode 20The Pyramid of Puzzles
- Episode 21One's Fix-It Shop
- Episode 22Happy Campers
- Episode 23The Mystery of Fraction Island
- Episode 24Fractions Are a Piece of Cake
- Episode 25Octonaughty and the Fractionator
- Episode 26You're Five Ones and I'm Five Tens
- Episode 27The Forest of Tens
- Episode 28All the Numbers I Can Be
- Episode 29The Rings of Unity
- Episode 30The Space Signal