The 17th annual Brazilian Olympiad featured an incredibly tricky logic puzzle that went viral on social media. <------ Recently ? on Twitter ?
Here's an interesting logic puzzle from MindYourDecisions:
Assume that both of the following sentences are true:
------- Pinocchio always lies
------- Pinocchio says, "All my hats are green."
What can we conclude from the above two statements:
(A) Pinocchio has at least one hat.
(B) Pinocchio has only one green hat.
(C) Pinocchio has no hats.
(D) Pinocchio has at least one green hat.
(E) Pinocchio has no green hats.
On 26/06/2022 20:14, henh...@gmail.com wrote:<------ Recently ? on Twitter ?
The 17th annual Brazilian Olympiad featured an incredibly tricky logic puzzle that went viral on social media.
Here's an interesting logic puzzle from MindYourDecisions:
Assume that both of the following sentences are true:
------- Pinocchio always lies
------- Pinocchio says, "All my hats are green."
What can we conclude from the above two statements:
(A) Pinocchio has at least one hat.
(B) Pinocchio has only one green hat.
(C) Pinocchio has no hats.
(D) Pinocchio has at least one green hat.
(E) Pinocchio has no green hats.
(A). I don't understand why this is difficult? If he had no hats, the statement would be vacuously true. So he must have at least one hat that is not green.
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