Deduction Puzzles

What’s inside

• Three boxes are labeled Apple, Orange, and Mixed. Every label is wrong. You may draw one fruit from only one box.…
• On an island, knights always tell the truth and knaves always lie. A says, “B and I are the same type.” B says, “A is…
• Four people sit in seats 1 through 4. Leo sits in seat 2. Mina sits immediately to the left of Noor. Omar is not…
• One of eight identical-looking coins is lighter than the others. Using a balance scale, you weigh three coins against…
• Three friends each ordered a different drink: tea, coffee, or juice. Ava did not order tea. Ben ordered coffee. Cara…
• Liam, Maya, and Noah each own a different pet: a cat, a dog, or a fish. Liam does not own the dog. Maya does not own…
• Three parcels—red, blue, and green—were delivered on Monday, Tuesday, and Wednesday, one per day. The red parcel…
• A logic puzzle has three suspects—Rina, Sol, and Tariq—and three rooms: the library, kitchen, and garden. Rina was not…