Chevron down icon Chevron down icon Brain Train Logic Puzzle by Professor Puzzle Save Liquid error (snippets/product-badge line 32): Computation results in '-Infinity'% $12.99 | / Availability: Translation missing: en.general.icons.icon_check_circle icon 20 in stock, ready to be shipped 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Click & Collect ✕ Use my location Loading Store Information View more stores Take the fast track to fun with these bustling logic puzzles! These reusable cards are great for all ages and perfect entertainment, whether you’re joining the rush hour commute or keeping your train of thought.