英聞天天譯: “謝麗爾的生日”

Passage 1
A math problem intended for sophomores and juniors in Singapore has become the obsession of some portion of the Internet over the past few days. The students were asked to answer a seemingly simple question: “When is Cheryl’s birthday?”
To figure it out, you’re provided with some vague clues. Cheryl separately gives two new friends some details about when she was born, including a list of 10 possible birth dates. She also tells one of the friends, Albert, the month of her birthday, then tells the other friend, Bernard, the day of her birthday.
As a final clue, there’s a conversation between Albert and Bernard, in which they each talk about what they know. ?

Passage 2
Stumped? You're not alone.
The question first appeared on April 8, as part of the Singapore and Asian Schools Math Olympiads contest. It was posted online Friday by a Singaporean television presenter and quickly went viral — perhaps because the problem was initially misidentified as one intended for 10- and 11-year-olds.
As the problem spread far and wide, it became a bit of a joke. Truthfully, we blame no one for choosing to laugh instead of crying out of frustration.
Albert and Bernard later went out and over drinks, compared notes and decided Cheryl and her frigging birthday wasn't worth their time.