Mother and Daughter Riddle — Daily Riddle

This riddle has been stumping people for well over two thousand years. It was whispered at Greek banquets, scribbled into Roman schoolbooks, and studied by monks in Anglo-Saxon England. The clue is in the family tree: what kind of “child” can give birth to its own mother?

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My mother and my daughter are one and the same. I am born of water, yet I fear the sun. Touch me, and I vanish.

Here’s a hint: you’ll find the answer outside your window on a cold winter morning, but it won’t be there by afternoon.

Click to Reveal the Answer

Ice 🧊

Water (the mother) freezes into ice (the daughter). When ice melts, it becomes water again, so the daughter gives birth to the mother. They are one and the same.

The Oldest Riddle in the Room

The mother-daughter paradox at the heart of this riddle has been circulating for at least 2,000 years. One of the earliest known versions appears in the Greek Anthology, a vast collection of ancient Greek poems and epigrams: “My mother I bring forth, she brings forth me.” The logic is beautifully circular: water freezes into ice, and ice melts back into water, so the child literally becomes the mother, over and over, forever.

The riddle later entered the Latin world through Donatus, the 4th-century Roman grammarian whose textbooks trained generations of students across Europe. He included it in his Ars Major as an example of an aenigma, a figure of speech that says one thing and means another.

Centuries later, the Anglo-Saxon scholar Aldhelm (c. 639-709), one of the earliest English poets to write in Latin, quoted this very riddle in his famous treatise on poetry and metre. It clearly fascinated him: the idea that nature could produce something so elegant, a perfect loop of creation and destruction hidden in an ordinary winter morning.

What makes the ice riddle timeless is how much it packs into so few words. There’s science (the water cycle), philosophy (identity and transformation), and a quiet reminder that nothing in nature truly disappears. It just changes form, becomes its own mother, and starts again.