Choose the right person. Who is your uncle's son for you?
Who is your mother's grandfather for you?
Who is your mother's other son for you?
Who is your brother's son for you?
For your mother, who is your brother?
Who is your father's father for you?
Who is your mother's brother for you?
For your grandfather, who is your brother?

cousin
grandchild
son
brother
great grandfather
grandfather
uncle
nephew