A word I know,
Six letters it contains,
Subtract just one,
And twelve is what remains.

Dozens

Through wind and rain I always play, 
I roam the earth, yet here I stay; 
I crumble stones, and fire cannot burn me; 
Yet I am soft- you can gauge me with your hand. 

What am I?

The ocean.

Pronounced as one letter, 
And written with three, 
Two letters there are, 
And two only in me. 
Im double, Im single, 
Im black blue and grey, 
Im read from both ends, 
And the same either way. 

Eye

I went into the woods and got it 
I sat down to seek it 
I brought it home with me because I couldn't find it 

A splinter.

Keyboard

Tissue