Can Superman kill himself

I mean not like a duplicate or alternate reality or past or future self but cn he kill himself by like attacking himself?

Is this a serious question?

Kryptonite

"Is this a serious question?"

so your asking if he could asking if he could suffocate himself? I'd reckon so...

he uses his heat vision to shave and in the superman/doomsday movie the clone used it to burn into his own skull....so i'm guessing he could use his heat vision to through his head

or rips his head off or rip his own heart out

"or rips his head off or rip his own heart out"

It makes more sense that he can cause harm to his body just as easily as a human can. It doesn't seem likely that he could rip his own head off. There are other ways to kill oneself however.

"T.M.O.E. said:

"or rips his head off or rip his own heart out"

so it sounds like you knew the answer all along"

i suppose he can hit himself in the head continually or to hide in a shade away from the sun till he's out of energy

Sure, if he jumps into a pool of Kryptonite :-)

He could pack a lunch of Krytonite, Pop Rocks, Coke and Spam, fly into space and stop for lunch... 

Anyone can kill themselves.  Why would you ask this question? :p

Why would Big Blue kill himself?

"

Why would Big Blue kill himself?

"

why wouldnt he?

"why wouldnt he?"

Drugs, disease