A perscription, schedule III, narcotic analgestic (pain killer) containing hydrocodone and acetaminophen (Tylenol). Hydrocodone is actually an opiate, like heroin, that gives an amazing euphoric body high but it's also very addictive (although not nearly as addictive as heroin).
Unlike basketball and football, there is no way of knowing how long a game of volleyball will be. Like the others have already said, whoever wins the first 3 out of 5 sets wins the game. How long that can take can be anywhere from 30 minutes to 2 hours. (I've played in both).
Regulation height for a volleyball net in high school play is 7.5 inches. The volleyball court is 60 feet long with 30 feet allowed on either side of the divider. Rallies in volleyball average around 5 seconds with the approximate time between rallies being about 14 seconds.