In a logic grid, you place a check mark to show that a person matches an item. What should you do next?

Put crosses in the rest of that row and column

Put a check mark in every other row

When solving a logic grid puzzle, which clues should you usually mark first?

Clues that directly say who does or does not match something

Clues with the longest sentences

Clues that mention the most people

Logic Grid Puzzle Quiz: 10 Who Has What Puzzles

This logic grid puzzle quiz gives you ten small who has what puzzles, where each person matches exactly one drink, color, pet age, sport, lunch, class day, job or instrument, with two picture grids to read and two questions on solving methods, the same style found in puzzle books from Dell Magazines and Penny Press. Ten questions.

Start Logic Grid Puzzle Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 90 Seconds

Question 1 / 10 Time: 90s

Drinks
Mia, Leo and Zoe each drink one of tea, coffee and juice. Mia drinks neither coffee nor juice. Leo does not drink juice. Who drinks juice?
Colors
The grid shows what we know about Ava, Ben and Cara's favorite colors. Each person has a different color. What is Cara's favorite?
Ages
A dog, a cat and a rabbit are 2, 4 and 6 years old. The rabbit is the youngest, and the dog is older than the cat. How old is the cat?
Sports
Ann, Bo and Cy play tennis, golf and chess. The chess player is shorter than Ann. Bo is the tallest. Ann does not play golf. What does Bo play?
Lunch
The grid shows what we know about Dan, Eva and Finn's lunches. Each person eats something different. What does Finn eat?
Classes
Art, music and math classes are on Monday, Tuesday and Wednesday. Math is not on Monday. Music is the day after art. On which day is music?
Method
In a logic grid, you place a check mark to show that a person matches an item. What should you do next?
Jobs
Gina, Hal and Ian are a doctor, a pilot and a chef. Hal is afraid of flying. The doctor is Ian's sister. Gina is the only woman. Who is the pilot?
Instruments
Kai, Lou and Max play drums, guitar and violin. Kai is not the violinist. Lou sits next to the drummer. Max is the guitarist. What does Lou play?
Method
When solving a logic grid puzzle, which clues should you usually mark first?

Explanations: answer key for all 10 questions

Q1: Mia, Leo and Zoe each drink one of tea, coffee and juice. Mia drinks neither coffee nor juice. Leo does not drink juice. Who drinks juice?
Answer: Zoe
Mia must drink tea, since she rules out the other two. Leo cannot have juice or tea, so he has coffee, and juice is left for Zoe.
Q2: The grid shows what we know about Ava, Ben and Cara's favorite colors. Each person has a different color. What is Cara's favorite?
Answer: Blue
Ava has crosses for red and blue, so she likes green. Ben has a cross for blue and green is taken, so he likes red. Blue is left for Cara.
Q3: A dog, a cat and a rabbit are 2, 4 and 6 years old. The rabbit is the youngest, and the dog is older than the cat. How old is the cat?
Answer: 4
The rabbit must be 2. Of the ages left, the dog takes the older one, 6, so the cat is 4.
Q4: Ann, Bo and Cy play tennis, golf and chess. The chess player is shorter than Ann. Bo is the tallest. Ann does not play golf. What does Bo play?
Answer: Golf
Ann cannot be the chess player, and neither can Bo, who is taller than Ann. So Cy plays chess. Ann does not play golf, so she plays tennis, and Bo plays golf.
Q5: The grid shows what we know about Dan, Eva and Finn's lunches. Each person eats something different. What does Finn eat?
Answer: Pizza
Eva has a check mark for salad. Dan has a cross for pizza and cannot have salad, so he eats pasta. Pizza is left for Finn.
Q6: Art, music and math classes are on Monday, Tuesday and Wednesday. Math is not on Monday. Music is the day after art. On which day is music?
Answer: Tuesday
If art were on Tuesday, music would be Wednesday and math Monday, which is not allowed. So art is Monday, music is Tuesday and math is Wednesday.
Q7: In a logic grid, you place a check mark to show that a person matches an item. What should you do next?
Answer: Put crosses in the rest of that row and column
Each person matches exactly one item, and each item belongs to one person. A check mark therefore rules out every other cell in its row and column.
Q8: Gina, Hal and Ian are a doctor, a pilot and a chef. Hal is afraid of flying. The doctor is Ian's sister. Gina is the only woman. Who is the pilot?
Answer: Ian
The doctor is a woman, so Gina is the doctor. Hal will not fly, so he is the chef. That leaves Ian as the pilot.
Q9: Kai, Lou and Max play drums, guitar and violin. Kai is not the violinist. Lou sits next to the drummer. Max is the guitarist. What does Lou play?
Answer: Violin
Max plays guitar. Kai does not play violin, so Kai plays drums, and Lou plays violin. The fact that Lou sits next to the drummer fits, since Lou is not the drummer.
Q10: When solving a logic grid puzzle, which clues should you usually mark first?
Answer: Clues that directly say who does or does not match something
Direct clues, such as Mia does not drink coffee, can be marked at once. They often unlock the harder clues that compare or link items.

Logic Grid Puzzle Quiz – Matching With Crosses and Checks

A logic grid puzzle asks you to match people with things using a short list of clues. Each person matches exactly one item in each category, and no two people share the same item. To keep track, solvers draw a grid with people down the side and items across the top, then mark each cell with a cross for no or a check mark for yes.

The power of the grid comes from one simple rule. When you place a check mark, every other cell in the same row and column becomes a cross. When only one empty cell is left in a row or column, it must be a check. These small steps, repeated again and again, often solve the whole puzzle.

Logic grid puzzles became a staple of puzzle magazines in the second half of the 20th century. Publishers such as Dell Magazines and Penny Press in the United States filled whole books with them, from easy three-person puzzles to large ones with five categories and many clues. The famous Zebra Puzzle is a bigger cousin of the same idea.

Good solvers mark direct clues first, such as Mia does not drink coffee. Then they look at comparison clues, such as the dog is older than the cat, and chain clues, such as music is the day after art. Testing each option and ruling out the ones that break a clue is called elimination.

These puzzles train careful reading, memory and step-by-step reasoning. Teachers often use them to show that a big problem can be solved with many small, certain steps.

Try drawing your own grid on paper for each puzzle in this quiz. It is the best way to see how the method works.

What This Quiz Teaches

This quiz is perfect for puzzle book fans, students and logic lovers.

How to read and fill a logic grid
Using crosses and check marks
Direct, comparison and chain clues
Solving by elimination
Which clues to mark first
The history of puzzle magazines

Quick Facts About Logic Grid Puzzles

A puzzle with 3 people and 1 category has only 6 possible answers.
Larger grids can have thousands of possible combinations.
Logic grid puzzles are also called logic problems.
Most good puzzles have exactly one solution.
Many apps now offer daily logic grid puzzles.
Solving them on paper with a pencil is still the classic method.