Your question is incoherent. Please rephrase.
The answer to this riddle is a grandfather. A grandfather has no father, cannot have a son directly, but can have a grandson through their own child who has a son (grandchild).
Your grandfather's father is your great grandfather.
Your father's grandfather is your great grandfather.
Your grandfather's father is your great grandfather.
no
A grandma is either your mother's mother or your father's mother.
Your grandfather's father is your great grandfather.
Yes, the father of your father is your "Paternal Grandfather".
Everyone has a grandfather, since they are your father's father.
The father of my mother is my...The answer is grandfather; in Spanish, abuelo.
Your father's grandfather is your great grandfather.
Your father's father is your grand father and your grandfather's father is your great grandfather.