రోజుకో ఆకారం మారుస్తాడు, చివరకు నిండు సున్నా అవుతాడు. ఏమిటది ?

వివరణ

The answer is the moon (chandrudu). This riddle captures the moon's phases—it changes shape daily, appearing as a thin crescent that gradually fills, until the final new moon phase appears as an empty zero. The wordplay is clever because 'sunya' (zero/empty) describes both the dark moon's appearance and the cyclical completion of its journey.