Logic puzzle worksheet featuring three numbered challenges involving number sequences and letter patterns.
A logic puzzle worksheet with three numbered puzzles: Puzzle 18 asks which four-digit number is missing from the sequence (195, 383, 575, 763, ?), Puzzle 19 asks which number completes the puzzle using number grids, and Puzzle 20 asks which letter replaces the question mark in a letter sequence (B, Y, C, X, E, V, G, T, K, P, M, ?). A test answer sheet is on the right.