If I Only Had a Brain from The Wizard of Oz

This is what sleep deprivation does to me...

I could while away the hours, conferrin' with the flowers,
Consultin' with the rain.
And my head I'd be scratchin' while my thoughts were busy hatchin',
If I only had a brain.
I'd unravel every riddle for any individ'le,
In trouble or in pain.
With the thoughts I'd be thinkin',
I could be another Lincoln,
If I only had a brain.
Oh, I could tell you why the ocean's near the shore,
I could think of things I'd never thunk before,
And then I'd sit, and think some more. 
I would not just be a nuffin', my head all full of stuffin',
My heart all full of pain.
I would dance and be merry, life would be a ding-a-derry,
If I only had a brain.

Lyrics from here.