Near Quiz Master Shop Towers lives a family with three daughters who are identical triplets. The girls are called Faith, Hope and Charity, and here's the strange thing about them: Faith always tells the truth; Hope always lies; and Charity sometimes tells the truth and sometimes lies.
One day they came to visit and they sat in a neat line in three chairs while we talked. Being curious people here at Quiz Master Shop Towers (in both senses of the word curious), we wanted to know which girl was which. So we asked them each a question.
We asked the girl on the left "Who is sitting in the middle?" and she replied "Faith".
Then we asked the girl in the middle "Who are you?" and she replied "Charity".
Finally we asked the girl on the right "Who is sitting in the middle?" and she replied "Hope".
We had asked all three girls the name of the girl in the middle, and received three different answers.
So who was sitting where?
The key to solving this is finding Faith, who always tells the truth.
Faith can't be the girl on the left, as she would have had to be lying when she said the middle girl was Faith.
Faith can't be the girl in the middle, as she would have had to be lying when she said she was Charity.
So the girl on the right is Faith.
She says the middle girl is Hope, and that must be correct.
Leaving the girl on the left to be Charity.