20 Questions is described as '20Q is an object, a website, a company, and a phenomenon. It first gained popularity as an online game (20Q.net) where users log onto the website and play against an artificial intelligence (A.I.) foe. Players think of an animal, vegetable, mineral, or other object and 20Q' and is a Q&A service in the games category. There are 2 games similar to 20 Questions for a variety of platforms, including Windows, Web-based, Android, iPhone and Blackberry apps. The best 20 Questions alternative is Akinator, which is free.