Can you solve the passcode riddle?

Name: Can you solve the passcode riddle?
Duration: 3 min 47 s
Channel: Ganesh Pai

Ganesh Pai · TED

Credits and licence

From: Can you solve the passcode riddle?, TED (at TED)
Licence: CC BY-NC-ND 4.0, as TED states it. Non-commercial use only, and no changed versions.
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Who can watch: Tweens profiles and older. How courses are placed