Get smart curated videos delivered to your inbox every week.      
The Kid Should See This

Can you solve the fish riddle?

As the cargo director on the maiden voyage of the S.S. Buoyant, you’ve agreed to transport several tanks containing the last specimens of an endangered fish species to their new aquarium. Unfortunately, the boat is battered by a fierce storm, throwing your precious cargo overboard. Can you get the fish to safety and save the day?

This TED Ed riddle by Steve Wyborney, with animation by Artrake Studio, focuses on prime numbers and divisibility. It also uses a table to visualize the data and solve the riddle.

Watch more fish videos, more shark videos, and more puzzle videos, including the virus riddle, the counterfeit coin riddle, and the airplane riddle.

This award-winning video collection is reader-supported. Become a sustaining member to keep TKSST online and free for everyone, including teachers and parents who use it as a resource to spark learning and curiosity for kids.

🌈 Watch these videos next...

The Basking Shark: A gentle giant with a piano-sized mouth

Rion Nakaya

The Hardest Jigsaw

Rion Nakaya

A deep-sea octopus that protects her eggs for four & a half years

Rion Nakaya

Infinite chocolate: How to create chocolate out of nothing

Rion Nakaya

Can you solve the airplane riddle?

Rion Nakaya

What’s the fastest way to alphabetize your bookshelf?

Rion Nakaya

How a mathematician dissects an astonishing coincidence

Rion Nakaya

Incredible sardine run feeding frenzy – Earth Touch in South Africa

Rion Nakaya

Can you solve the virus riddle?

Rion Nakaya