Cheryl's birthday

Albert and Bernard just became friends with Cheryl, and they want to know when her birthday is. Cheryl gives them a list of 10 possible dates.

May 15 May 16 May 19

June 17 June 18

July 14. July 16

August 14. August 15. August 17

Cheryl then tells Albert and Bernard(EDIT:my apologies for mixing them up initially. Further clarification: Albert knows the month while Bernard knows the day.) separately the month and the day of her birthday respectively.

Albert: I don't know when Cheryl's birthday is, but I know that Bernard does not know too.

Bernard: At first I don't know when Cheryl's birthday is, but I know now.

Albert: Then I also know when Cheryl's birthday is.

When is Cheryl's birthday?

Pridané 13. apríl 2015 by Admin

Kategória Hlavolam | 1 komentárVtipkár

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Pridané 25. september 2015 22:55:23

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