Monday, March 30, 2015

Riddle/Lateral Thinking: When is Cheryl’s birthday?

7. When is Cheryl’s birthday?

Recently I came across a riddle in facebook, which was originally intended for 5th grade students in Singapore. It created a lots of interest and discussion in the social media and is continuing in doing so… Hope you would like this

However, the formation of the riddle was somewhat confusing, hence I have modified the wordings (continued after the pic) and attached the original question (as a pic) too.

The modified riddle:
Albert and Bernard just met Cheryl. After talking for a while, Albert asked Cheryl , “When’s your birthday?”
Cheryl thought a second and said, “I’m not going to tell you, but I’ll give you some clues.”
Albert and Bernard said in union…its fine J
Cheryl wrote down a list of 10 dates: May 15, May 16May 19June 17June 18July 14July 16, August 14, August 15August 17 and said, “My birthday is one of these”.
Then she whispered in Albert's ear the month — and only the month — of her birthday. To Bernard, she whispered the day, and only the day. 
Then she asked Albert, “Can you figure it out now?”
Albert: I don’t know when your birthday is, but I know Bernard doesn’t know, either.
Bernard: I didn’t know originally, but now I do.
Albert: Well, now I know, too!

Q: When is Cheryl’s birthday?

Note: Basic assumption holds good. 

Read it and post your answers as reply to the post. I will be adding my answer if there are no correct answers after 10 replies.  


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