A horse is on a 24 foot chain and wants an apple that is 26 feet away. How can the horse get to the apple?

Alive without breath,
As cold as death,
Never thirsty, Ever drinking,
Clad in mail, Never clinking,
Drowns on dry land,
Thinks an island, Is a mountain,
Thinks a fountain, Is a puff of air.

Until I am measured
I am not known,
Yet how you miss me
When I have flown.

With thieves I consort,
With the vilest, in short,
I’m quite at ease in depravity;
Yet all divines use me,
And savants can’t lose me,
For I am the center of gravity.

The cost of making only the maker knows,
Valueless if bought, but sometimes traded.
A poor man may give one as easily as a king.
When one is broken pain and deceit are assured.

Who makes it, has no need of it.
Who buys it, has no use for it.
Who uses it can neither see nor feel it.

I build up castles.
I tear down mountains.
I make some men blind,
I help others to see.
What am I?

Glittering points
That downward thrust,
Sparkling spears
That never rust.

I am seen in the water
If seen in the sky,
I am in the rainbow,
A jay’s feather,
And lapis lazuli.

If a man carried my burden
He would break his back.
I am not rich,
But leave silver in my track