Can you solve the passcode riddle? - Ganesh Pai
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- TEDEd Animation
If you enjoyed this problem, here’s another version of a problem with the number 72: "UNSOLVABLE" Logic Puzzle: What Are Their Ages?
You may also visit the educator’s website here to understand factors and multiples in detail. Finally, if you wish to understand more math concepts (who wouldn’t?), visit this link.
Love riddles? TED-Ed has plenty of them that will challenge you:
The famously difficult green-eyed logic puzzle - Alex Gendler
Can you solve the prisoner hat riddle? - Alex Gendler
Can you solve the control room riddle? - Dennis Shasha
Can you solve "Einstein’s Riddle"? - Dan Van der Vieren
Can you solve the temple riddle? - Dennis Shasha
Can you solve the frog riddle? - Derek Abbott
Can you solve the locker riddle? - Lisa Winer
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