Do you like riddles? I got some for you. I'm sure some of you already know this riddle game but for the other people it will be a tough one. So here is the riddle:
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 separatly 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.
So when is Cheryl's birthday?