Three different positions of the same non-standard dice are shown. The faces show the letters P, Q, R, S, T, and U. Position 1 shows P, Q, R. Position 2 shows R, S, T. Position 3 shows P, S, U. Which letter will be on the face opposite to the face with the letter 'Q'?

Three positions of the same dice are shown: Position 1 shows (1, 2, 3), Position 2 shows (1, 3, 5), and Position 3 shows (1, 5, 6). Select the number that will be on the face opposite to the face showing '4'.

Two positions of the same dice are given. Which number face is opposite to the face with 6?