Everyone loves logic puzzles, riddles, and critical thinking. As featured in the TpT newsletter, expand your students' brain power with this fourth volume of Brain Teasers! These are perfect for that first or last few minutes of class.What's Included in Volume 4:Now in Google Drive format!30 different Brain Teasers in 2 great formats - (Worksheets or Google Slideshow)3 worksheets of 10 Brain Teasers each - (to use as handouts or assign in Google Classroom)1 stunning slideshow of 30 Brain Teaser