"X" is for mystery "X" is for???

Well, well, wat wat "R" you looking for???
Try the SKY guy or someX like dat.
SPACE, IS THE PLACE ???
PLANET X ???
But for real, "X" is for mystery  and, and,..
"X" is for the unknown and, and,...
"X" is for TEN or you know
Ten fingers and Ten toes, but,but,
one more, "X" is for TIME...
ANYWHO, WHO "NOSE"???
Okay I'll give you a clue. Look at the picture.
The answer is the nose, nose, so ask "ROVER".
One more did you notice.. there's a lot of
Now in Know?  Eye-mean, no stuff.
But "Here's" wat you need to hear..
here's wat will help you.
It HELPS "you" for  NOW too KNOW.
Eye-mean... CAN YOU "HERE" DIS OR "HEAR"  DAT??? 
One more.  
DO YOU KNOW WHERE YOUR NOSE IS???
(okay you can't smile much, but for now.. learn someX...