Another short riddle, this one about something that travels over and under water with its head always down. It rewards a slow, puzzled reading before the answer clicks.
From Mother Goose / Nursery Rhymes (traditional). See the whole collection.
Over the water,
And under the water,
And always with its head down.
About this rhyme
Rhyme text quoted exactly: 'Over the water, And under the water, And always with its head down.'
"A Ship's Nail" is another tiny riddle: over the water, under the water, always with its head down. The answer is a nail in a ship's hull, at the waterline, covered by the sea one moment and clear of it the next.
Short enough to say twice, which is usually what it takes for the answer to land.
Public domain. Text from The Real Mother Goose (Blanche Fisher Wright, 1916), via Project Gutenberg. View the source edition