grave wondering … [who/what/where/when/how/why]."
Thanks in advance for your replies, if any. 
…who really killed JFK.
bunk.
Oops. How about… how much humans will achieve during our existence.
My first thought was, how do they get the caramel in the Caramilk bar? But then I found the answer.
So, I guess I’m okay now.
Well, as an afterthought, I’ll go to my grave wondering if there really is a God.
How many licks does it REALLY take to get to the center of a Tootsie Roll Pop? That owl cheated and bit it!
I’ll go to my grave wondering:
Who put the bomp
In the bomp bah bomp bah bomp?
Who put the ram
In the rama lama ding dong?
Who put the bop
In the bop shoo bop shoo bop?
Who put the dip
In the dip da dip da dip?
What proof would you require to know the answer to this question?
…what life would have been like with a couple of ex’s I’m particularly fond of.
I’ll go to my grave wondering exactly what killed my father. When he died, his doctor wrote it up as a heart attack, which was just a wild-assed guess. Since an autopsy would have cost the family $2500, we never learned precisely what his cause of death was.
pinkfreud, the minute I saw this thread I decided not to post my first thoughts, but seeing your post, I will.
It concerns the murder of my mother and person who was tried for it, but found not guilty.
I was in the house that night and the other victim (who lived) was able to crawl to my room and said he was the person who had just shot them. (The are also other pieces of strong circumstantial evidence.)
That person says he didn’t do it, but I’ll never know if it’s true or not.
It’ve been over 30 years, but I always wonder what would be the outcome if I came up with the money to hire an investigator.
I’ll go to my grave wondering who murdered my mother.
I’ll go to my grave ignorant of the truth
What that guy in the Radiohead’s Just says.
I’ll likely go to my grave not understanding how you can possibly masturbate your essence away. 
Easy. It’s stapled to your soul.
I think hearing it from a raving lunatic with a megaphone on a streetcorner would suffice. 