You might be able to survive for 3 hours or so, maybe a little longer if you could stay calm enough to keep your breathing slow and not use up the available oxygen too fast. Of course as the oxygen levels get lower, your heartrate would go up in an effort to get more oxygen to the body, which would, in turn, speed up your breathing causing the air to run out faster.
This game calculates your level of caffeine intake by measuring how often you can click a button in 45 seconds. Your result will then be returned in degrees Celsius (°C) to give you an idea of how you compare to other people.
Cursing is sometimes said to be a symptom of poor or lacking vocabulary. Well, that's fucking bullshit. Most often it is the complete opposite; swearing allows for an indulging in language. Here, try it yourself and take this challenge: See just how many swearwords you can think of in the course of 5 minutes.