THREE RHYMING RIDDLES

1)

A horse that will never run,

I come when there is no sun.

2)

The measure of hunger and also of power,

Four of us, it's said, will mark the final hour;

Some gain wealth by virtue of our speed,

Once we are broken, to men we give heed.

3)

The top-ten-selling books,

The top-forty-selling songs;

Each has its day,

Some short and some long.

But on this chart I alone remain number one,

And will so forever, never to be undone.

Answers:

1. Nightmare

2. Horses

3. Hydrogen on the Periodic Table