1. **Stating the problem:** Ashok is looking at a portrait of a man and says, "His mother is the wife of my father's son. Brothers and sisters, I have none." We need to find out whose portrait Ashok is looking at. 2. **Understanding the statement:** Ashok says "my father's son". Since Ashok has no brothers or sisters, "my father's son" must be Ashok himself. 3. **Rewriting the statement:** "His mother is the wife of my father's son" becomes "His mother is the wife of Ashok". 4. **Interpreting the relationship:** The man in the portrait's mother is Ashok's wife. 5. **Conclusion:** If the man's mother is Ashok's wife, then the man is Ashok's son. **Final answer:** Ashok is looking at the portrait of his son.