What walks on four legs in the morning; two legs at midday; and three legs in the evening?
Man; who crawls on all fours as an infant; walks on two feet as an adult; and uses a walking stick in old age.
Why this works
This riddle cleverly uses the metaphor of a day to represent the stages of a human life. "Morning" symbolizes infancy when a baby crawls on all fours, "midday" represents adulthood when a person walks upright on two legs, and "evening" signifies old age when a person often uses a walking stick, thus resembling three legs. The riddle invites us to reflect on the journey of life, illustrating how our methods of mobility change as we age.