Many of us have played the old party game of “20 Questions.” In it, one person thinks of something, and you can ask up to twenty “yes/no” questions in an effort to guess what it is.
There’s an entertaining version of this 20 Questions Game online that Intermediate and Advanced English Language Learners would enjoy. You think of something, and the computer asks you questions (in addition to “yes/no” you can answer “sometimes/doubtful/unknown”) in an attempt to guess what you’re thinking of.
I thought of “Bangkok” and it took the web application 23 questions to determine it correctly.
After students played the game online, they did it in class. It was excellent speaking and listening practice then, and the online game was a great warm-up.