Albert: I don't know when Cheryl's birthday is, but I know that Bernard doesn't know either. Bernard: At first I didn'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? - ThreadSky

About ThreadSky

critikid.bsky.social • 40 days ago

Albert: I don't know when Cheryl's birthday is, but I know that Bernard doesn't know either.
Bernard: At first I didn'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?

Comments

thomasstclair.bsky.social•38 days ago

May 19th. If Bernard only knew the date but not the month then it's the only date that isn't repeated in another month.

critikid.bsky.social•38 days ago

No, try again. Remember, knowing only the month, Albert can deduce that Bernard doesn't know.

montyharper.com•40 days ago

August 17

critikid.bsky.social•40 days ago

That's not it

kateallday.bsky.social•40 days ago

June 18th

critikid.bsky.social•40 days ago

That's not it. Try again!

kateallday.bsky.social•40 days ago

June 17th. Tuesday, June 17th.

critikid.bsky.social•40 days ago

June 17 would be the answer if who knows the day/month were switched.

kateallday.bsky.social•40 days ago

Day of the week is not relevant at all?

kateallday.bsky.social•40 days ago

I'm screaming. And probably totally on the wrong track.

May - M1, Th1, F1
June - T*, W1
Jul - M2, W2
Aug - Th2, F2, Su*

Of all possible dates, there's only one Tuesday and Sunday (this year's calendar, all dates on same side of leap year)

critikid.bsky.social•40 days ago

Day means the number, not day of the week

Posting Rules

Be respectful to others
No spam or self-promotion
Stay on topic
Follow Bluesky's terms of service

Comments

Posting Rules

Reply