How many wisdom teeth can you have?

Answer

Usually just four unless you have had too much calcium you can have an extra or two.  

Answer

normally just 4, but my friend just got 6 pulled and someone at my doctors office had 8. the world record was 12!!!
 

Answer

There are 4 wisdom teeth and the reason why these teeth become useless and bothersome in some people is because hundreds of years ago humans jaws were wider and they need these extra teeth for grinding, but as time marched on the jawlines and facial features changed and the jawlines grew narrower and these extra teeth are no longer needed.  

Answer

Usually there are four.
Sometimes one, two or all of the wisdom teeth are missing. They have never formed. 25% of people are missing at least one wisdom tooth.
Other times there are extra wisdom teeth, called surnumerary teeth.