When is his birthday?

Logic Level 2

Richard and Jack just become friends with Harry, and they want to know when is his birthday. Harry gives them a list of ten possible dates.

May 15May 16May 19
June 17June 18
July 14July 16
August 14August 15August 17

Harry then tells Richard and Jack separately the month and the day of his birthday respectively.

Richard: I don't know when Harry's birthday is, but I know Jack doesn't know too.

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

Richard: Then I also know when Harry's birthday is.

When is Harry's birthday?


This is a part of the set: Logic

This problem is a part of the set: Hard/Tough problems

Try this: All of my problems

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