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Pick up a pencil and sharpen your deductive reasoning skills with these challenging logic puzzles. Each Perplexor puzzle categorizes information and lists clues below. By using the "cross-out-and-circle" technique, you will practice logical thinking in order to find the correct answer. Perplexors: Level D (Ages 12 to 14) includes 48 full-page puzzles with solutions. This book is reproducible for single-classroom use. Please see the link below for a free printable worksheet sample. Printed in the USA. Download Sample Page