Can you solve the prisoner hat riddle? - Alex Gendler
Ten prisoners, ten hats and one clever strategy: pause before the reveal and see if your family can crack it first.
Fun videos worth your time
Hand-picked riddles, science experiments, satisfying builds and game challenges from great creators. Videos load only when you press play.
Riddles & brain teasers
Can you solve the bridge riddle? - Alex Gendler
Four people, one lantern, a rickety bridge and zombies closing in. A timing puzzle that rewards thinking a few moves ahead.
Can you solve "Einstein's Riddle"? - Dan Van der Vieren
A famous logic grid puzzle about houses, pets and drinks. Grab paper, follow the clues and track down the missing fish.
Can you solve the river crossing riddle? - Lisa Winer
A twist on the classic river crossing puzzle where every boat trip counts. Great for solving together as a group.
Fun science
Backyard Squirrel Maze 1.0- Ninja Warrior Course
A former NASA engineer builds an eight-stage obstacle course to outwit bird-feeder thieves, and the squirrels keep surprising him.
World's Largest Jello Pool- Can you swim in Jello?
What happens when you fill an entire pool with jello? Big logistics, wobbly physics and an answer to a question every kid has asked.
Mystery of Prince Rupert's Drop at 130,000 fps - Smarter Every Day 86
A glass droplet that shrugs off hammer blows yet bursts when you snip its tail, explained with stunning ultra-slow-motion footage.
The Immune System Explained I – Bacteria Infection
Colourful animation turns a scraped finger into an epic battle, showing how your body's defenders team up against invading bacteria.
Satisfying & creative
THE AMAZING TRIPLE SPIRAL (15,000 DOMINOES)
Fifteen thousand dominoes topple into three interlocking spirals. Hypnotic proof of what patience and careful planning can build.
Wintergatan - Marble Machine (music instrument using 2000 marbles)
A hand-cranked wooden machine drops two thousand steel marbles onto real instruments to play an entire song. Engineering meets music.
OK Go - This Too Shall Pass - Rube Goldberg Machine - Official Video
A warehouse-sized chain reaction of dominoes, toy cars and falling pianos, timed perfectly to the beat in one continuous take.
The Page Turner | Rube Goldberg | Joseph's Machines
A gloriously overcomplicated contraption built from household odds and ends, all to turn a single page of a book.
Games & challenges
Giant Nerf Trick Shots | Dude Perfect
Oversized foam blasters and absurd targets. A high-energy trick shot reel that will have kids trying their own backyard versions.
Water Bottle Flip 2 | Dude Perfect
The viral bottle flip craze pushed to ridiculous extremes: moving targets, long-distance landings and plenty of celebration.
After 34 Years, Someone Finally Beat Tetris
How a 13-year-old became the first player ever to 'beat' classic Tetris, and the wild techniques that made it possible.
The Best Games from GMTK Game Jam 2022
A tour of inventive tiny games built in just 48 hours. A fun peek at how game designers turn one idea into play.
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Turn watching into playing
Loved the riddles? Try Minesweeper or the daily Sudoku — both are pure logic. Inspired by the chain-reaction machines? Our rainy day activities include build-it-yourself ideas.