Puzzle Test— Concepts, Formulas & Shortcuts
- Draw a grid with people down one axis and attributes across the other.
- Enter only definite statements first; hold conditional ones aside.
- Use negative clues ("X does not live on the top floor") to strike cells.
- When one cell in a row or column is confirmed, eliminate the rest of that row and column.
- If the puzzle stalls, take the most constrained item and test each possibility.
- Verify the finished grid against every original clue before answering.
Puzzle Test Practice Questions with Answers
Attempt each question first, then open the explanation. All 10 questions below are free to read and require no signup.
Q1.Five people live on five floors. A lives above B, and B lives above C. Who lives lowest among the three?
Easy- AA
- BB
- CC
- DCannot be determined
Puzzle Test question 1 of 10+Show Answer & Explanation
Answer: C. C
Explanation: The order from top is A, then B, then C, so C is lowest of the three.
Q2.Three friends study different subjects: Physics, Chemistry and Maths. Ravi does not study Physics. Sita studies Maths. Who studies Physics?
Moderate- ARavi
- BSita
- CThe third friend
- DCannot be determined
Puzzle Test question 2 of 10+Show Answer & Explanation
Answer: C. The third friend
Explanation: Sita takes Maths and Ravi is excluded from Physics, so the remaining friend must study Physics.
Q3.Four people sit at a square table. P is opposite Q. R sits to P's left. Who sits opposite R?
Moderate- AP
- BQ
- CS
- DNobody
Puzzle Test question 3 of 10+Show Answer & Explanation
Answer: C. S
Explanation: With P and Q opposite, the remaining pair R and S must face each other.
Q4.In a puzzle grid, a confirmed match in a cell means you should:
Easy- ALeave the row and column unchanged
- BEliminate the rest of that row and column
- CRestart the grid
- DIgnore other clues
Puzzle Test question 4 of 10+Show Answer & Explanation
Answer: B. Eliminate the rest of that row and column
Explanation: Each entity matches exactly one attribute, so confirming a cell rules out every other cell in its row and column.
Q5.Five boxes are stacked. The red box is directly above the blue, and the green is at the bottom. Which box cannot be at the top?
Easy- ARed
- BBlue
- CGreen
- DAny of them
Puzzle Test question 5 of 10+Show Answer & Explanation
Answer: C. Green
Explanation: Green is stated to be at the bottom, so it cannot also be at the top.
Q6.A, B, C and D have different pets: dog, cat, bird and fish. A has neither the dog nor the cat. B has the bird. Which pet can A have?
Moderate- ADog
- BCat
- CBird
- DFish
Puzzle Test question 6 of 10+Show Answer & Explanation
Answer: D. Fish
Explanation: A is excluded from dog and cat, and B has the bird, so A must have the fish.
Q7.Six students are ranked. P is above Q, Q is above R, and R is above S. Who has the highest rank among these four?
Easy- AP
- BQ
- CR
- DS
Puzzle Test question 7 of 10+Show Answer & Explanation
Answer: A. P
Explanation: The chain gives P > Q > R > S, so P ranks highest.
Q8.In a seating puzzle, the clue "X does not sit at either end" is best used to:
Moderate- AConfirm X's exact seat
- BEliminate two possible seats for X
- CPlace X in the middle
- DIgnore X
Puzzle Test question 8 of 10+Show Answer & Explanation
Answer: B. Eliminate two possible seats for X
Explanation: A negative clue removes candidate positions; it rarely fixes a seat by itself.
Q9.Three houses stand in a row, painted red, blue and white. The white house is not at either end. Where is the white house?
Easy- ALeft end
- BMiddle
- CRight end
- DCannot be determined
Puzzle Test question 9 of 10+Show Answer & Explanation
Answer: B. Middle
Explanation: With only three positions, excluding both ends leaves the middle.
Q10.When a puzzle allows two complete arrangements, it means:
Moderate- AThe puzzle is unsolvable
- BA clue has been overlooked or the data is insufficient
- CBoth answers are correct
- DThe grid was drawn wrongly
Puzzle Test question 10 of 10+Show Answer & Explanation
Answer: B. A clue has been overlooked or the data is insufficient
Explanation: A well-posed puzzle has exactly one solution, so two valid arrangements signal either a missed clue or genuinely insufficient data.
Puzzle Test — Frequently Asked Questions
What is the grid method?+
Draw a table with entities on one axis and attributes on the other, then mark each cell as confirmed or eliminated as clues are applied. It makes contradictions visible immediately.
What should I do when the clues run out but the grid is incomplete?+
Pick the most constrained row — the one with fewest remaining possibilities — and test each option. A wrong branch produces a contradiction quickly.
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