This 48-page printable PDF ebook for Preschool through Grade 2 is packed full of brain-scratching riddles that develop students' fluency and understanding of word meanings and associations. These riddles also develop spelling, vocabulary, reading, critical thinking and creative problem-solving skills. Everyone loves the mystery of a riddle and Dr. DooRiddles will bring laughter, groans, and challenges (perhaps for as much as a week or more per riddle) to you and your students. Perceiving relatio