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Can you solve the famously difficult green-eyed logic puzzle? - Alex Gendler

Can you solve the famously difficult green-eyed logic puzzle? - Alex Gendler

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Can you solve the troll’s paradox riddle? - Dan Finkel

Can you solve the troll’s paradox riddle? - Dan Finkel

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Can you solve the jail break riddle? - Dan Finkel

Can you solve the jail break riddle? - Dan Finkel

You

Can you solve the magical maze riddle? - Alex Rosenthal

Can you solve the magical maze riddle? - Alex Rosenthal

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Can you solve "Einstein’s Riddle"? - Dan Van der Vieren

Can you solve "Einstein’s Riddle"? - Dan Van der Vieren

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Can you solve the penniless pilgrim riddle? - Daniel Finkel

Can you solve the penniless pilgrim riddle? - Daniel Finkel

If

Can you solve the frog riddle? - Derek Abbott

Can you solve the frog riddle? - Derek Abbott

View full lesson: http://ed.ted.com/lessons/

Can you solve the three gods riddle? - Alex Gendler

Can you solve the three gods riddle? - Alex Gendler

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Can you solve the prisoner hat riddle? - Alex Gendler

Can you solve the prisoner hat riddle? - Alex Gendler

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Can you solve the birthday cake riddle? - Marie Brodsky

Can you solve the birthday cake riddle? - Marie Brodsky

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Can you solve the bridge riddle? - Alex Gendler

Can you solve the bridge riddle? - Alex Gendler

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Can you solve the giant iron riddle? - Alex Gendler

Can you solve the giant iron riddle? - Alex Gendler

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Can you solve the passcode riddle? - Ganesh Pai

Can you solve the passcode riddle? - Ganesh Pai

View full lesson: http://ed.ted.com/lessons/