yes periods can last any amount of days
Normal output is approx 1.5litres
I personally think that the days were twenty-four hours each.
absolutely.
A normal period usually means no pregnancy, if you are unsure take a HPT.
The Moon rotates one time in about 27 days.
Yes, it is completely normal to get brown discharge for four days before your period, this is spotting which is just light bleeding as your period starts. A virgin is absolutely no different to a non-virgin.
No seek medical attention
168 days
You actually had a four day period, but the last 2 days just seemed as if you spotted. You are normal.
NO. That is unusual.
Well, assuming that it is normal room height, which is 8ft, twenty four times eight is 184ft, so twenty four stories would be 184ft, or 56.08m.
Twenty eight days