All content on this site is available, via phone, Monday to Friday from 6:00 AM to 10:00 PM CST or Saturday and Sunday from 7:00 AM to 10:00 PM CST at
800-875-8480.
.
If you experience any accessibility issues, please contact us.
Sharpen thinking skills with our best-selling line of perplexing brain builders! Each fun story problem can be solved using deductive logic and the "cross-out-and-circle" process of elimination. Each book includes 48 full-page puzzles plus solutions.