
A mystery that logic alone cannot solve
Uncover the truth with Yes/No questions

When John entered a dimly lit room, a stranger with a cloth draped over his head was sitting there. When John greeted him, the man took one look at John and asked, "Are you dating Mary?" It was true that John was dating Mary, but how did the man know that?

Ask questions that can be answered with "Yes" or "No"

Keep asking questions to uncover the hidden truth

Declare your answer when you think you've solved it

A mystery that logic alone cannot solve
Uncover the truth with Yes/No questions

When John entered a dimly lit room, a stranger with a cloth draped over his head was sitting there. When John greeted him, the man took one look at John and asked, "Are you dating Mary?" It was true that John was dating Mary, but how did the man know that?

Ask questions that can be answered with "Yes" or "No"

Keep asking questions to uncover the hidden truth

Declare your answer when you think you've solved it