It's not that simple, unfortunately. The CAPTCHAs that were showing up for me yesterday and the day before could not be beaten, but reappeared in an endless cycle until I gave up. Sometimes there was an actual 'puzzle' (e.g. the famous traffic lights), other times just selecting "I am not a robot" was sufficient to make the question reload.
Those are the only two conditions that make the captcha show. If you have add-ons that block our javascript or cookies that would cause problems. If you need further help then we'd need to look up your traffic by IP address so email us directly.