He took from his pocketbook the familiar slip on which the verse was written:—

“Here’s a puzzle in language old,

Find my meaning and get my gold.

Take one BOLT—just one, no more—

Fix it on behind a DOOR.

Place it at a river’s MOUTH

East or west or north or south.

Take some LEAVES and put them whole

In some WATER in a BOWL.

I found this puzzle in a book