10 questions
Where is a mother?
Is it a grandfather?
Yes.
No.
Is it a :
mother
sister
gradmother
gradfather
Where is a father?
Find a son.
Who is it?
mother
father
sister
brother
Who is it?
father
mother
son
grandfather
Find a sister.
Is it a mother?
Yes.
No.
Who is it?
daugther
son
father