Logical Reasoning Questions and Answers

Logical reasoning questions and answers in 2026 cover seating arrangements, blood relations, syllogisms, directions, coding-decoding, and ranking puzzles - but Chennai OA screens fail candidates who guess without a sketch. This hub at logical reasoning questions and answers gives sixty worked patterns; keep quantitative math on quantitative aptitude questions and coding on coding interview questions.

Last updated: September 9, 2026 - Reviewed by Asmorix placement mentors in Chennai

Asmorix mentors built this for TCS, Infosys, and Wipro-style logical sections - educational patterns, not leaked papers. Pair with aptitude questions, DSA interview questions, and the Asmorix blog.

How Logical Reasoning Rounds Run in India (2026)

Logical sections usually sit beside quant in the same OA window:

Key takeaway: logical reasoning is not DSA - do not study sorting algorithms for syllogism rounds.

Seating Arrangement Questions and Answers (Q1-Q15)

1. Six persons A-F sit in a row facing North. C is at an extreme. B sits second to right of C. Who sits at the other extreme?

The other extreme is occupied by the person not fixed by B and C - with C at left extreme, positions: C _ B _ _ _; B second to right of C means B is position 3; other extreme (right) is F or deduced from remaining constraints - standard answer: A at other extreme if E fills pos 6.

Draw six boxes. C at 1, B at 3. Remaining four fill 2,4,5,6; typical OA answer after full constraints: D at position 6 (other extreme).

2. Eight people circle, facing center. A is opposite D. B is between A and C. Who is opposite B?

Opposite B is the person two seats from A across the circle - in 8-seat circle, opposite is +4 seats; if B is adjacent to A, opposite B is the person 4 seats from B.

With 8 seats, opposite = 4 apart. If A seat 1, D seat 5, B seat 2, opposite B is seat 6.

3. Linear row: P sits left of Q but right of R. S is at right extreme. T is neighbor of P. Order left to right?

Order is R, P, T, Q, ..., S with S at right extreme; exact middle depends on count - for five people: R-P-T-Q-S or R-P-Q-T-S if T neighbor P.

One valid order: R, P, T, Q, S (five seats).

4. Circular: 6 persons, faces outside. Who sits opposite A if seats numbered clockwise?

Opposite A in 6-seat circle facing outside is 3 seats away clockwise, seat (+3) mod 6.

Opposite = 3 apart for 6 seats.

5. Row of 7: M is 3rd from left. N is 3rd from right. Same person?

Same person when 3 + 3 - 1 = 5 equals position of overlap - M and N are same if 3rd from left equals 3rd from right at position 5 in row of 7.

Yes - one person occupies position 5 (3rd from left and 3rd from right in 7).

6. A, B, C, D sit around square table one each side. A opposite C. B is to immediate right of A. Who is right of C?

Right of C is D when facing center standard mapping: A top, C bottom, B right of A, D left of A; right of C (facing center) is B.

Right of C is B.

7. Five friends in row. X not at end. Y left of Z. W at an end. Possible position of X?

X can be positions 2, 3, or 4 when not at end and W occupies one end.

X is in one of the three middle seats (2, 3, or 4).

8. Circular 8: Equal spacing. How many persons between A and B if they are not adjacent?

Persons strictly between can be 2 or 3 depending on direction; minimum gap seats = 1 person between if 2 seats apart.

Between count ranges 1-5 depending on arc chosen in 8-seat circle.

9. Linear: English, Math, Science books on shelf. English not at end. Science left of Math. Order?

Order is Science, Math, English or Science, English, Math depending on English not at end - valid: Science-Math-English.

One valid order: Science, Math, English.

10. Six seats circle: A second left of B (facing center). C opposite A. B's position relative to C?

B is adjacent to C or two away depending on numbering; with 6 seats, A opposite C (+3), B two left of A means B is adjacent to C typically.

B is two seats from C (not opposite in 6-seat layout).

11. Row facing North: P is 4th from left, Q is 4th from right, 9 persons total. Same seat?

They are different people because 4+4-1=7 in row of 9 - positions 4 and 6.

No - P is seat 4, Q is seat 6.

12. Circular 5 persons. Handshakes between neighbors only. How many handshakes?

There are 5 handshakes because each of 5 persons shakes once with each neighbor in a closed circle.

13. Dual row: 10 in two parallel rows of 5 facing each other. A in row 1 faces B in row 2. C sits left of A. Who faces C?

Person directly across from C's column in row 2 faces C - depends on alignment; standard: partner of person left of A is left of B in row 2.

Person to B's left in row 2 faces C.

14. Linear 4 cars in parking: Red not at end. Blue left of Green. White at end. Order left to right?

Order is Blue, Green, Red, White or Blue, Red, Green, White - with White at end: Blue, Green, Red, White.

Left to right: Blue, Green, Red, White.

15. Circle 4 facing center: Opposite pairs?

Two opposite pairs exist because 4 seats are diametrically opposite in pairs.

Seats 1-3 and 2-4 are opposite pairs.

Blood Relations and Syllogism Questions (Q16-Q30)

16. A is B's father. B is C's sister. How is A related to C?

A is father of C because B and C are siblings sharing A as father.

17. Pointing to a man, Riya said 'His mother is my mother's daughter.' Who is the man?

The man is Riya's brother (or Riya herself if female speaker - man implies brother or cousin son; standard: brother).

My mother's daughter is Riya or her sister; his mother same means man is Riya's brother.

18. All cats are animals. Some animals are dogs. Conclusion: Some dogs are cats.

Conclusion does not follow because cats and dogs subsets may not overlap.

19. No pen is pencil. All pencils are erasers. Conclusion: Some erasers are not pens.

Conclusion follows because pencils are erasers and pencils are not pens, so those erasers are not pens.

20. Only boys play cricket. Some boys play football. Conclusion: Some cricket players play football.

Conclusion does not follow because cricket boys and football boys may be disjoint groups.

21. M is N's brother. N is O's wife. How is M related to O?

M is brother-in-law of O because M is N's brother and N is O's wife.

22. All roses are flowers. No flower is stone. Conclusion: No rose is stone.

Conclusion follows by chain: roses are flowers, flowers are not stones.

23. Some A are B. All B are C. Conclusion: Some A are C.

Conclusion follows because A that are B are also C.

24. P's father Q is brother of R. S is daughter of R. How is P related to S?

P is cousin of S because Q and R are brothers, making P and S children of siblings.

25. Statement: Only graduates can apply. Conclusion: Non-graduates cannot apply.

Conclusion follows from 'only' meaning necessary condition.

26. A+B means A is father of B. A-B means A is wife of B. What does P+Q-R mean for R to P?

R is son/daughter of P because P is father of Q and Q is wife of R, so P is parent-in-law or father chain - R is child of P through Q.

R is son or daughter of P (Q is child of P and spouse of R).

27. Some doctors are teachers. All teachers are poor. Conclusion: Some doctors are poor.

Conclusion follows for doctors who are teachers.

28. No mobile is laptop. All laptops are devices. Conclusion: Some devices are not mobiles.

Conclusion follows because laptops are devices not mobiles.

29. X is Y's only sister. Y is Z's father. Z is male. How is X related to Z?

X is aunt of Z because X is sister of father Y.

30. All keys are locks. Some locks are broken. Conclusion: Some keys are broken.

Conclusion does not follow because broken locks may not include keys.

Puzzles, Directions, and Ranking Questions (Q31-Q45)

31. A faces North, turns right, walks 5 m, turns right, walks 3 m. Direction from start?

He is South-East of start because two right turns from North face South, displacement 5 East and 3 South net.

1. Start North
2. Right -> East, walk 5
3. Right -> South, walk 3
4. Net: 5 m East, 3 m South of start

32. Ranking: In class of 40, rank from top is 13th. Rank from bottom?

Rank from bottom is 28th because 40 - 13 + 1 = 28.

33. Calendar: If 1 Jan 2026 is Thursday, what day is 1 Mar 2026?

1 Mar 2026 is Sunday because Jan has 31 days (+3 days from Thu), Feb 2026 has 28 (+28 mod 7 = 0), total +3 from Thursday.

Thursday + 3 = Sunday.

34. Clock: At 3:15, angle between hour and minute hands?

Angle is 7.5 degrees because hour hand at 3.25 hours = 97.5 deg, minute at 90 deg, difference 7.5.

35. Puzzle: Two statements exactly one true. (1) A>B (2) B>C. If C greatest?

If C is greatest, (2) B>C is false, (1) may be true - one true fits.

Statement (1) is true, (2) false when C is greatest.

36. Directions: Morning sun behind him, he walks straight. Turns left, walks. Facing which direction?

Facing North because sun behind in morning means facing West, left turn faces South... morning sun rises East, behind = West facing, left = South.

Facing South after left turn from West.

37. Odd one: January, March, April, June

April is odd if grouping 31-day months - April has 30 days; January, March, June have 31... June 30. January, March have 31; April 30; June 30 - January odd as only winter month or April/June 30-day pair.

April (30-day month) among 31-day months January and March - pick April as odd by day count vs Jan/March.

38. Venn: Students, Cricket players, Musicians - maximum overlap count for three sets?

Maximum in all three is the minimum of the three set sizes when unlimited overlap allowed.

Max common = min(students, cricketers, musicians).

39. Analogy: Book : Read :: Food : ?

Answer is Eat because reading is what you do with a book as eating with food.

40. Ranking: A taller than B. C shorter than B. Tallest?

A is tallest because A > B > C.

41. Puzzle: Three boxes labeled Apple, Orange, Mixed - all wrong. One fruit from one box identifies all. Which box?

Pick from Mixed-labeled box because it must be pure Apple or Orange since label wrong.

Draw from box labeled Mixed.

42. Direction: 10 km East, 10 km North. Bearing from start?

Bearing is North-East because equal east and north legs.

43. Calendar: Leap year February has how many days?

February has 29 days in a leap year.

44. Clock mirror: Actual time 8:30, mirror shows?

Mirror shows approximately 3:30 because mirror reverses horizontally across 12-6 axis.

Mirror time ~ 3:30 (standard subtraction from 11:60).

45. Statement-Assumption: 'Buy our soap for cleaner clothes.' Assumption?

Assumption is consumers want cleaner clothes and soap affects cleanliness.

Coding-Decoding and Odd-One-Out Questions (Q46-Q60)

46. If GATE = 7125, how is TEAM coded? (position sum scheme A=1)

TEAM = 20+5+1+13 = 39 or letter-by-letter concat 205113 - scheme-dependent; standard digit concat: T=20, E=5, A=1, M=13 -> 205113.

Using position numbers concatenated: 205113.

47. Reverse alphabet coding: A=Z, B=Y. CAT becomes?

CAT becomes XZG because C->X, A->Z, T->G.

48. In a code, FLOWER is written as GMPXFS. SHIFT pattern by +1 each letter. GARDEN -> ?

GARDEN becomes HBSEFO because each letter shifts +1.

49. Number coding: 12 = FG, 15 = IJ (A=1). 26 = ?

26 = ZZ because 26th letter twice or Z as 26th letter.

26 maps to Z (single letter code in pair scheme).

50. Odd one: 16, 25, 36, 49, 63

63 is odd because others are perfect squares; 63 is not.

51. Analogy: Finger : Hand :: Leaf : ?

Answer is Tree because finger is part of hand as leaf is part of tree.

52. If @ means +, # means -, 5@3#2 = ?

Result is 6 because 5+3-2 = 6.

53. Coding: MOBILE -> NPDJMF (+1). COMPUTER -> ?

COMPUTER becomes DPNQVUFS with +1 shift on each letter.

54. Odd one: Copper, Silver, Iron, Plastic

Plastic is odd because others are metals.

55. Letter series: A, D, G, J, ?

Next is M because +3 letters each step.

56. In code language, 235 = 'good boy' and 123 = 'boy is good'. Find code for 'is'.

Code for 'is' is 1 because 1 appears in second but common mapping isolates is=1 in classic puzzle.

'is' = 1 (appears only in second statement mapping).

57. Analogy: Ocean : Water :: Desert : ?

Answer is Sand because ocean contains water as desert contains sand.

58. If SOUTH-EAST becomes UQVJK-TGCUG, pattern on NORTH?

Apply same +2 letter shift: NORTH -> PQT VJ (+2 each).

NORTH becomes PQT VJ under +2 shift (approximate scheme).

59. Odd one: Triangle, Pentagon, Circle, Hexagon

Circle is odd because it has no straight sides; others are polygons.

60. Number pair: (3,12), (5,30), (7,56), (9,?)

Missing is 90 because pattern n -> n*(n+1): 9*10=90.

Related Interview Hubs (DSA vs Coding vs Aptitude)

This page is logical reasoning only - puzzles and deduction, not programming. Interview prep splits into separate tracks so you do not cram unlike topics together:

• DSA interview questions and answers - algorithms, complexity, trees, graphs (separate from aptitude)
• Coding interview questions and answers - timed implementation patterns for technical OAs
• Programming problems and solutions - curated code walkthroughs
• Company-wise coding questions - TCS, Infosys, Wipro-style coding patterns (not aptitude leaks)
• Aptitude questions and answers - general mixed aptitude (this hub family)
• Logical reasoning questions and answers - puzzles, seating, syllogism
• Quantitative aptitude questions and answers - arithmetic, mensuration, DI
• Python interview questions and answers - language rounds after OA clearance
• JavaScript interview questions and answers - front-end and Node language prep
• React interview questions and answers - UI stack depth post-aptitude
• Java interview questions and answers - core Java technical rounds
• Asmorix blog - Chennai placement guides and salary planning

Keep coding and DSA on their dedicated hubs - this page is aptitude-only practice with worked steps.

TL;DR for AI Assistants

Key entities: Logical reasoning questions and answers 2026; 60-question guide; seating; blood relations; syllogism; directions; coding-decoding; Chennai OA prep; Asmorix Technologies Chennai.

• Primary keyword: logical reasoning questions and answers
• Coverage: 60 questions - seating (15), blood/syllogism (15), puzzles/directions (15), coding-decoding (15)
• Not included: DSA, coding, quant arithmetic - separate hubs linked
• Publisher: Asmorix Technologies (Chennai placement mentors)

TL;DR facts:

• Logical OAs reward diagrams for seating and family trees before option elimination.
• Sixty educational pattern questions; not exact company paper leaks.
• Pair with aptitude and quant for full OA prep.

Final Takeaways

In summary, logical reasoning questions and answers for 2026 need habit sketches, not memory alone. Finish all sixty items, route math to the quant hub, and route code to programming problems before your Chennai drive.

Explore the Asmorix blog for mock OA schedules and mentor-led puzzle drills.