TNPSC Group 1 - Logical reasoning and puzzles. Question Bank with Options

1. Find the number of straight lines in the following figure. (A square with one diagonal)

A) 3

B) 4

C) 5

D) 6

2. If 'DEAF' is coded as '1234', how is 'FACE' coded?

A) 3142

B) 4132

C) 3412

D) 4312

3. A man is 4 times as old as his son. In 5 years, he will be 3 times as old as his son. What is the present age of the man?

A) 40 years

B) 45 years

C) 50 years

D) 55 years

4. Which word is the odd one out?

A) Triangle

B) Square

C) Circle

D) Pentagon

5. If 'EAT' is coded as '3120', how is 'TEA' coded?

A) 2013

B) 2031

C) 1320

D) 3120

6. Find the next term in the series: 1, 1, 2, 3, 5, 8, ...

A) 11

B) 13

C) 16

D) 21

7. A train travels at 60 km/hr. How many seconds will it take to cover a distance of 1.5 km?

A) 30 seconds

B) 60 seconds

C) 90 seconds

D) 120 seconds

8. If 'CAT' is coded as 'DOG', 'RAT' is coded as 'POT', then 'BAT' is coded as:

A) COT

B) BOT

C) GOT

D) HOT

9. Find the missing number in the series: 8, 15, 24, 35, 48, ?

A) 54

B) 60

C) 64

D) 72

10. A sum of money doubles itself in 10 years. In how many years will it triple itself?

A) 15 years

B) 20 years

C) 25 years

D) 30 years

11. If 'TABLE' is written as 'BMELT', how is 'CHAIR' written?

A) RIHAC

B) RIAHC

C) RDJHR

D) RDHJR

12. Find the odd one out: 10, 20, 30, 40, 55

A) 10

B) 20

C) 30

D) 55

13. What is the total number of hours in 3 days?

A) 48

B) 54

C) 72

D) 96

14. If 'ORANGE' is coded as '314526', how is 'GREEN' coded?

A) 42253

B) 43352

C) 42235

D) 43325

15. A man is 40 years old and his son is 10 years old. In how many years will the son be one-third the father's age?

A) 5 years

B) 10 years

C) 15 years

D) 20 years

16. In a class, there are 15 boys and 10 girls. If the probability of selecting a boy is 3/5, what is the probability of selecting a girl?

A) 1/5

B) 2/5

C) 3/5

D) 4/5

17. Find the next letter in the series: Z, Y, X, W, V, ...

A) U

B) T

C) S

D) R

18. If 'WATER' is coded as 'XBUFS', how is 'EARTH' coded?

A) FBSUI

B) FBSUH

C) FBTUI

D) FBUTI

19. Which number replaces the question mark? (A 2x2 grid with numbers: top-left 5, top-right 8; bottom-left 7, bottom-right ?)

A) 9

B) 10

C) 11

D) 12

20. If the 1st of January is a Monday, then the 1st of March of the same year will be a:

A) Monday

B) Tuesday

C) Wednesday

D) Thursday

21. Find the number of cubes in the following structure. (A 3x3x3 cube made of smaller cubes)

A) 21

B) 27

C) 30

D) 36

22. If 'ROSE' is coded as 'ESOR', how is 'BOOK' coded?

A) KOOB

B) OOKB

C) KOBO

D) OBOK

23. Which figure comes next in the series? (A series of shapes changing: Square, Circle, Triangle, Square, Circle, ?)

A) Square

B) Circle

C) Triangle

D) Rectangle

24. A man is facing West. He turns 90 degrees clockwise, then 180 degrees anti-clockwise, then 45 degrees clockwise. In which direction is he facing now?

A) North

B) East

C) South

D) West

25. If in a certain language, 256 means 'You are good', 637 means 'We are bad', and 453 means 'You have bad', what does 'have' mean?

A) 5

B) 3

C) 4

D) 7

26. Find the odd one out: 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101

A) 53

B) 61

C) 71

D) 97

27. If 'GO' is coded as '20', 'SHE' is coded as '49', then 'SOME' is coded as:

A) 52

B) 56

C) 60

D) 64

28. A watch, when held upside down, shows 6:30. What is the actual time?

A) 5:30

B) 6:30

C) 7:30

D) 12:30

29. If 'Pen' is called 'Book', 'Book' is called 'Table', 'Table' is called 'Chair', and 'Chair' is called 'Window', what do you write on?

A) Pen

B) Book

C) Table

D) Chair

30. Find the next term in the sequence: 1, 4, 9, 16, 25, ...

A) 30

B) 36

C) 42

D) 49

31. Which of the following is a perfect square?

A) 123

B) 144

C) 150

D) 170

32. A family consists of a father, mother, son, and daughter. The father is the brother of the aunt. The mother is the sister-in-law of the aunt. How is the mother related to the father?

A) Sister

B) Daughter

C) Wife

D) Cousin

33. If 'MAMA' is coded as 'LBLB', how is 'PAPA' coded?

A) OZOA

B) OZOZ

C) LZLZ

D) MZMA

34. What is the value of X? (A series of equations: 2*3=8, 3*4=15, 4*5=24, 5*6=35, 6*7=?)

A) 42

B) 48

C) 54

D) 60

35. Find the missing letter in the series: A, C, F, J, O, ?

A) T

B) U

C) V

D) W

36. A person is facing North. He turns 45 degrees clockwise, then 90 degrees anti-clockwise, then 180 degrees clockwise. In which direction is he facing now?

A) North

B) South

C) East

D) West

37. If 'CAT' is related to 'DOG' in the same way 'MAN' is related to which of the following?

A) WOMAN

B) BOY

C) GIRL

D) CHILD

38. Find the odd one out: 121, 144, 169, 196, 225

A) 121

B) 144

C) 169

D) 225

39. If 'TABLE' is coded as 'EBATL', how is 'CHAIR' coded?

A) RIHAC

B) RIAHC

C) RIACH

D) RAICH

40. A clock shows 3:00 PM. In how many minutes will it show 3:30 PM?

A) 15

B) 20

C) 30

D) 45

41. Which word does NOT belong with the others?

A) Car

B) Bus

C) Train

D) Bicycle

42. How many triangles are there in the given figure? (A figure with a large triangle divided into four smaller triangles by lines from the apex to the base)

A) 4

B) 6

C) 8

D) 10

43. If 1 is coded as A, 2 as B, 3 as C, ..., 26 as Z, then 20-8-5 is coded as:

A) T H E

B) U I F

C) T I E

D) U H F

44. Which number replaces the question mark in the following figure? (A 3x3 grid with numbers: top row 1, 2, 3; middle row 4, ?, 6; bottom row 7, 8, 9)

A) 4

B) 5

C) 6

D) 7

45. If the day before yesterday was Saturday, what day will the day after tomorrow be?

A) Wednesday

B) Thursday

C) Friday

D) Sunday

46. Find the next number in the series: 2, 5, 10, 17, 26, ...

A) 35

B) 37

C) 39

D) 41

47. Pointing to a photograph, a man said, "I have no brother or sister, but that man's father is my father's son." Who is in the photograph?

A) His Son

B) His Nephew

C) Himself

D) His Father

48. In a certain code, 'BRIGHT' is written as 'DSJHIU'. How is 'DEEP' written in that code?

A) EFDS

B) EEDP

C) EEOQ

D) FFDQ

49. A man walks 5 km north, then 4 km east, then 3 km south, then 2 km west. How far is he from his starting point?

A) sqrt(5) km

B) sqrt(7) km

C) sqrt(13) km

D) sqrt(10) km

50. If 'Apple' is coded as 'BQQMF', how would 'Banana' be coded?

A) CBNAOA

B) CBONOA

C) CBOOBA

D) CBONNA

Logical reasoning and puzzles. - Question Bank