If P is taller than Q and R is taller than S but shorter than Q, then who is the shortest among them?
Among P, Q, R, S and T, each having a different height, Q is taller than S, T is shorter than P, R is taller than Q but shorter than T. Who among them is the tallest?
Who among P, Q, R, S, T and U is the tallest, considering that all have different heights?
I. Q is taller than P but shorter than T.
II. Only two of them are shorter than R.
III. S is taller than only U.