Neatorama has a list of the 25 Most Important Questions in the History of the Universe (with some sort of collaboration from Mental Floss).  Some of the more interesting ones (in my opinion) include: 
Can a Pregnant Woman Drive in the Carpool Lane?
Why Does Hawaii Have Interstate Highways?
Was Turkey a Bird or a Country First?
How Much Wood Would a Woodchuck Chuck if a Woodchuck Could Chuck Wood?
Why Can't You Tickle yourself?
#entertainment