Math & Logic Puzzles
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Brain Games - Find the Cat Challenge: Search for a Hidden Cat in More Than 125 Pictures! (Brain Games - Picture Puzzles) [441933]
Retail Price $12.98Firefly Price $6.50This item is Used and is listed as being in Very Good condition. Front and back covers have light edge and corner wear. Spine intact with no creasing or warping. Binding is tight and intact, pages clean and unmarked. Cover image may be sourced as stock...Retail Price $12.98Firefly Price $6.50 -
Sudoku [440044]
Firefly Price $5.99This item is Used and is listed as being in Very Good condition. Front and back covers have light edge and corner wear. Spine intact with no creasing or warping. Binding is tight and intact, pages clean and unmarked. Cover image may be sourced as stock...Firefly Price $5.99 -
How do you Survive a Duel? And Othere Mathematical Diversions, Puzzles and Brainteasers [438649]
Firefly Price $5.99This item is Used and is listed as being in Very Good condition. Front and back covers have light edge and corner wear. Spine intact with no creasing or warping. Binding is tight and intact, pages clean and unmarked. Cover image may be sourced as stock...Firefly Price $5.99 -
Currently Out of Stock
Lateral Mindtrap Puzzles: Challenge the Way You Think & See [435102]
Retail Price $6.95Firefly Price $3.50This item is Used and is listed as being in Good condition. Cover image may be sourced as stock images from OpenLibrary.org and may not represent the actual item or cover art. If you need images of this specific item, please contact us. Firefly SKU:...Retail Price $6.95Firefly Price $3.50 -
263 Brain Busters: Just How Smart are You, Anyway? (Novels Series) [399007]
Retail Price $5.99Firefly Price $2.99This item is Used and is listed as being in Very Good condition. Cover image may be sourced as stock images from OpenLibrary.org and may not represent the actual item or cover art. If you need images of this specific item, please contact us. Firefly SKU:...Retail Price $5.99Firefly Price $2.99 -
World's Most Baffling Puzzles [396871]
Retail Price $5.95Firefly Price $2.99This item is Used and is listed as being in Very Good condition. Cover image may be sourced as stock images from OpenLibrary.org and may not represent the actual item or cover art. If you need images of this specific item, please contact us. Firefly SKU:...Retail Price $5.95Firefly Price $2.99 -
World's Most Perplexing Puzzles [396862]
Firefly Price $3.99This item is Used and is listed as being in Good condition. Cover image may be sourced as stock images from OpenLibrary.org and may not represent the actual item or cover art. If you need images of this specific item, please contact us. Firefly SKU:...Firefly Price $3.99 -
Logic Puzzles [396861]
Retail Price $7.95Firefly Price $3.99This item is Used and is listed as being in Good condition. Cover image may be sourced as stock images from OpenLibrary.org and may not represent the actual item or cover art. If you need images of this specific item, please contact us. Firefly SKU:...Retail Price $7.95Firefly Price $3.99 -
One-Minute Brainteasers: Official American Mensa Puzzle Book (Mensa�) [394158]
Retail Price $6.95Firefly Price $3.50This item is Used and is listed as being in Very Good condition. Cover image may be sourced as stock images from OpenLibrary.org and may not represent the actual item or cover art. If you need images of this specific item, please contact us. Firefly SKU:...Retail Price $6.95Firefly Price $3.50 -
Star Battle Puzzles [392930]
Retail Price $9.99Firefly Price $5.99This item is Used and is listed as being in Very Good condition. Front and back covers have very light edge and corner wear. Spine intact with no creasing or warping. Binding is tight and intact, pages clean and unmarked. Cover image may be sourced as...Retail Price $9.99Firefly Price $5.99 -
Quicksolve Whodunit Puzzles: Challenging Mini-Mysteries [392813]
Retail Price $6.95Firefly Price $2.99This item is Used and is listed as being in Good condition. Cover image may be sourced as stock images from OpenLibrary.org and may not represent the actual item or cover art. If you need images of this specific item, please contact us. Firefly SKU:...Retail Price $6.95Firefly Price $2.99 -
The 125 Best Brain Teasers of All Time: A Mind-Blowing Challenge of Math, Logic, and Wordplay [391742]
Retail Price $12.99Firefly Price $6.50This item is Used and is listed as being in Very Good condition. Front and back covers have very light edge and corner wear. Spine intact with no creasing or warping. Binding is tight and intact, pages clean and unmarked. Cover image may be sourced as...Retail Price $12.99Firefly Price $6.50 -
Currently Out of Stock
Lateral Thinking Puzzlers [384013]
Retail Price $6.95Firefly Price $3.50This item is Used and is listed as being in Very Good condition. Cover image may be sourced as stock images from OpenLibrary.org and may not represent the actual item or cover art. If you need images of this specific item, please contact us. Firefly SKU:...Retail Price $6.95Firefly Price $3.50 -
Brain Bafflers [383790]
Retail Price $6.95Firefly Price $3.50This item is Used and is listed as being in Good condition. Cover image may be sourced as stock images from OpenLibrary.org and may not represent the actual item or cover art. If you need images of this specific item, please contact us. Firefly SKU:...Retail Price $6.95Firefly Price $3.50 -
Beyond competition: Six dynamic new games for two or more players to win together [370823]
Firefly Price $6.99This item is Used and is listed as being in Good condition. Wear to cover, bumped corners, pages tanned but clean and unmarked. Cover image may be sourced as stock images from OpenLibrary.org and may not represent the actual item or cover art. If you...Firefly Price $6.99 -
More Puzzlegrams [370765]
Retail Price $18.00Firefly Price $5.99This item is Used and is listed as being in Good condition. Front and back covers have wear to edges and corners. Spine intact, some wear. Binding is intact. Pages are generally clean with edge or corner wear. Cover image may be sourced as stock images...Retail Price $18.00Firefly Price $5.99 -
Baker Street Puzzles [369768]
Retail Price $7.95Firefly Price $3.99This item is Used and is listed as being in Very Good condition. Front and back covers have very slight edge and corner wear. Spine intact with no creasing or warping. Binding is tight and intact, pages clean and unmarked. Cover image may be sourced as...Retail Price $7.95Firefly Price $3.99 -
Baker Street Whodunits: Puzzles of Deduction [369717]
Retail Price $6.95Firefly Price $3.50This item is Used and is listed as being in Very Good condition. Front and back covers have very slight edge and corner wear. Spine intact with no creasing or warping. Binding is tight and intact, pages clean and unmarked. Cover image may be sourced as...Retail Price $6.95Firefly Price $3.50 -
Great Quicksolve Whodunit Puzzles: Mini-Mysteries for You to Solve [361627]
Retail Price $6.95Firefly Price $3.50This item is Used and is listed as being in Very Good condition. Cover image may be sourced as stock images from OpenLibrary.org and may not represent the actual item or cover art. If you need images of this specific item, please contact us. Firefly SKU:...Retail Price $6.95Firefly Price $3.50 -
Brainstrains: Brainsnack Puzzles [259068]
Retail Price $5.95Firefly Price $2.99This item is Used and is listed as being in Good condition. Complete in box. Cover image may be sourced as stock images from OpenLibrary.org and may not represent the actual item or cover art. If you need images of this specific item, please contact us...Retail Price $5.95Firefly Price $2.99