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Thanks... it really helped me.
This is a famous Singaporean Logic Problem.
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Albert and Bernard just become 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 separately the month and day of her birthday respectively.
Albert: I don't know when Cheryl's birthday is, but I know for sure that even Bernard doesn't know it.
Bernard: At first I didn't know when Cheryl's birthday is, but I know now it.
Albert: Now I also know when Cheryl's birthday is.
So when is Cheryl's birthday?
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I got the solution already, but I don't understand a thing!!! Please help me...
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