Unbeatable Knowledge Quiz
1. Shooting 10,000 to 12,000 gallons each time, how often does Old Faithful erupt?
Every 75 minutes or so
Every 75 seconds or so
Every 75 hours or so
Every 75 days or so
Every 75 minutes or so
Every 75 seconds or so
Every 75 hours or so
Every 75 days or so