From questions to the answer

Twenty Questions

One player thinks of something; the others have twenty yes/no questions to find it.

2–12 players

How do you want to play?

One phone or tablet runs the game at the table. Nothing is sent or saved.

Everybody plays on their own device in a private WUDD room. Members only.

Rules and scoring

The answerer sets the answer privately: typed, or picked from WUDD suggestions.
The guessers ask in turn. Every question has a number, at most 20; a direct guess uses a question too.
Answers: yes, no, irrelevant or don't know. Whether a guess is right is decided by the answerer.
A right guess within twenty questions, the twentieth included, and the group wins; otherwise the answerer wins. The end reveals the answer.
Online: the next question waits until the current one is answered, and the answer is never in the shared history before the end.