Are you ready to tackle puzzles and logic problems? Do you have the imagination of a writer? The square logic of a mathematician? The creativity of an artist? How quickly and accurately can you make decisions? How confident are you in your abilities?

Mobilize your persistence, concentration, judgment, and imagination, and embark on this exciting journey! In this book, you will find the topics of the Out of the Box Challenge 4, the fourth student competition of creativity and critical thinking for children in 3rd and 4th grade, and for children in 5th and 6th grade, divided by age category.