Can You Solve This Tricky Riddle?


The following riddle has been making the rounds online, confounding people around the world.

Now it’s your turn.

Here’s the riddle:

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 separately tells Albert and Bernard 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?

See the video for the answer (but don’t watch it until you’re ready to be spoiled):


  1. “Here’s a thought, Cheryl could’ve just told them her real birthday”

    I couldn’t agree more.

  2. That was weird. Why couldn’t she have just told them her birthday????? They are her friends right???? Just wondering

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