The riddle "What walks on 4 legs in the morning, 2 legs at noon, and 3 legs in the evening?" is one of the most enduring and intriguing puzzles in human history. This enigmatic question has been a subject of fascination for scholars, philosophers, and the general public alike for centuries. The answer, as provided by the ancient Greek legend of Oedipus, is "man." To understand this answer, let's break down the stages of human life and how they relate to the number of legs used for mobility at different times.
Unraveling the Mystery: A Life Cycle Approach

According to the myth, the answer is based on the stages of human life. As an infant, a person crawls on all fours, effectively using four legs. This is the “morning” of life, symbolizing the early stages of human development. As the person grows into adulthood, they begin to walk on two legs, which corresponds to the “noon” of life, representing the prime of adulthood. Finally, in old age, the person may use a cane for support, thereby having three points of contact with the ground, symbolizing the “evening” of life.
Philosophical and Cultural Significance
This riddle not only tests one’s ability to think creatively and outside the box but also reflects deeper philosophical and cultural themes. It touches on the human condition, emphasizing the stages of life and how our capabilities and needs change over time. The use of “morning,” “noon,” and “evening” as metaphors for the stages of life adds a poetic and timeless quality to the riddle, making it universally relatable and thought-provoking.
| Stage of Life | Mode of Locomotion | Symbolic Representation |
|---|---|---|
| Infancy | Crawling (4 legs) | Morning of life |
| Adulthood | Walking (2 legs) | Noon of life |
| Old Age | Using a cane (3 legs) | Evening of life |

Key Points
- The answer to the riddle, "man," is derived from the different stages of human life and mobility.
- The riddle symbolizes the human life cycle, from infancy to old age, and the changes in mobility and dependence that occur.
- It reflects deeper philosophical and cultural themes, touching on the human condition and the universal experience of aging.
- The use of metaphors ("morning," "noon," "evening") for the stages of life adds a layer of depth and timelessness to the riddle.
- The riddle encourages creative thinking and contemplation of one's place within the broader context of human existence.
In conclusion, the riddle "What walks on 4 legs in the morning, 2 legs at noon, and 3 legs in the evening?" is a masterpiece of puzzle-making that not only challenges our minds but also prompts us to reflect on the essence of being human. Its themes of growth, change, and the passage of time are as relevant today as they were when the riddle was first posed, making it a timeless and universal puzzle that continues to fascinate and inspire people around the world.
What is the significance of the morning, noon, and evening in the riddle?
+The morning, noon, and evening symbolize the different stages of human life: infancy, adulthood, and old age, respectively. These metaphors are used to describe the changes in mobility and dependence that occur as a person grows and ages.
How does the riddle reflect the human condition?
+The riddle touches on universal human experiences such as growth, aging, and the eventual decline in physical capabilities. It invites reflection on the nature of human existence and the stages of life that we all go through.
What makes this riddle enduring and thought-provoking?
+The combination of its simple yet profound question, the clever use of metaphors for the stages of life, and its invitation to contemplate the human condition make this riddle both enduring and thought-provoking. It challenges not only our ability to think creatively but also our understanding of ourselves and our place in the world.