Question 8
Cecilia, Dina, Elena, and Fiona are cousins with different ages. When a new neighbor asked them who is the youngest, they answered: Cecilia: I am the eldest. Dina: I am not the youngest. Elena: I am neither the eldest nor the youngest. Fiona: I am the youngest. Given that one of them is not telling the truth, who is the youngest of the four cousins?