Omission

If you were a key on a keyboard,

I'd make you the " ` " key

Communicate

Often it is the unspoken words and the unsung heroes that accomplish the impossible

Subway

Bleed dammit!

Why won't you bleed!

Space

The space between your head.

Has anyone suggested to you yet?

I heard brains are on sale at the moment.

Maybe you should get one.

Oh on your way can you pick up some milk, coffee and a clue.

Thanks.

Trebuchet

All that's missing is my counterweight.

I was never intending to destroy your wall, just go over it.

Your wall which you thought kept you safe,

will be used against you to take you down from the inside out.

I am the stone, You are the mason.

Stranger

A simple 'hello' would suffice

Letter

Because sometimes we need it to be spelled out for us