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All questions of Puzzles for UPSC CSE Exam
Which one will replace the question mark ? 
- a)25
- b)625
- c)125
- d)50
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
25
b)
625
c)
125
d)
50
|
Nishtha Khanna answered |
All numbers are cubed,
(7)3 = 343
(1)3 = 1
(3)3 = 27
Similarly, (5)3 = 125.
Which one will replace the question mark ? 
- a)5
- b)6
- c)8
- d)9
Correct answer is option 'D'. Can you explain this answer?
Which one will replace the question mark ?
a)
5
b)
6
c)
8
d)
9
|
Niti Iyer answered |
93 - (27 + 3) = 63
79 - (38 + 4) = 37
Therefore, 67 - (16 + X) = 42
X = 9
Which one will replace the question mark ? 
- a)41
- b)64
- c)35
- d)61
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
41
b)
64
c)
35
d)
61
|
Parth Belani answered |
1*1*1=1 2*2*2=8 3*3*3=27 4*4*4=64
Which one will replace the question mark ? 
- a)18
- b)90
- c)108
- d)28
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
18
b)
90
c)
108
d)
28
|
|
Kirti Kumar answered |
13 + 15 = 28
36 + 54 = 90
Therefore, 45 + 63 = 108.
Which one will replace the question mark ? 
- a)25
- b)59
- c)48
- d)73
Correct answer is option 'D'. Can you explain this answer?
Which one will replace the question mark ?
a)
25
b)
59
c)
48
d)
73
|
|
Dipika Basu answered |
(2)3 + (1)3 + (3)3 = 36
and (0)3 + (4)3 + (3)3 = 91
Therefore, (4)3 + (2)3 + (1)3 = 73.
Which one will replace the question mark ? 
- a)40
- b)38
- c)44
- d)39
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
40
b)
38
c)
44
d)
39
|
|
Shalini Kumar answered |
9 + (2)2 = 13
13 + (3)2 = 22
22 + (4)2 = 38.
Which one will replace the question mark ? 
- a)262
- b)622
- c)631
- d)824
- e)undefined
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
262
b)
622
c)
631
d)
824
e)
undefined
|
Srishti Joshi answered |
(915 - 364) = 551
(789 - 543) = 246
(863 - 241) = 622.
Which one will replace the question mark ? 
- a)60
- b)30
- c)20
- d)45
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
60
b)
30
c)
20
d)
45
|
Mainak Malik answered |
(16 + 13) = (14 + 15)
and (28 + 12) = (10 + 30)
Therefore (29 + 16) = (15 + 30).
Which one will replace the question mark ?
- a)115
- b)130
- c)135
- d)140
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
115
b)
130
c)
135
d)
140
|
|
Mansi Joshi answered |
(5 x 6 x 8) + (7 x 4 x 9) = 492
and (7 x 5 x 4) + (6 x 8 x 9) = 572
Therefore (4 x 3 x 5) + (7 x 2 x 5) = 130.
Which one will replace the question mark ? 
- a)2
- b)3
- c)4
- d)5
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
2
b)
3
c)
4
d)
5
|
Uday Nambiar answered |
(18 x 12)/3 = 72
and (32 x 16)/4 = 128
Therefore, (24 x 14)/? = 112
(336/?) = 112
? = (336/112)
? = 3.
Which one will replace the question mark ? 
- a)30
- b)13
- c)70
- d)118
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
30
b)
13
c)
70
d)
118
|
|
Kirti Kumar answered |
(15 + 12)/9 = 3
and (44 + 28)/9 = 8
Therefore, (64 + 53)/9 = 13.
Which one will replace the question mark ? 
- a)8
- b)9
- c)10
- d)11
Correct answer is option 'D'. Can you explain this answer?
Which one will replace the question mark ?
a)
8
b)
9
c)
10
d)
11
|
|
Niti Iyer answered |
(3 x 4 - 8) = 4
(2 x 5 - 4) = 6
(4 x 5 - 9) = 11.
Which one will replace the question mark ? 
- a)3
- b)5
- c)4
- d)6
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
3
b)
5
c)
4
d)
6
|
|
Mansi Joshi answered |
(7 x 3) + 8 = 29
(4 x 3) + 7 = 19
(5 x ?) + 6 = 31
? = 5.
Which one will replace the question mark ? 
- a)94
- b)76
- c)16
- d)73
Correct answer is option 'A'. Can you explain this answer?
Which one will replace the question mark ?
a)
94
b)
76
c)
16
d)
73
|
|
Preethi Sarkar answered |
(4)2 + (2)2 + (1)2 = 21
and (5)2 + (3)2 + (8)2 = 98
Therefore (6)2 + (7)2 + (3)2 = 94.
Which one will replace the question mark ? 
- a)60
- b)46
- c)86
- d)75
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
60
b)
46
c)
86
d)
75
|
|
Janhavi Chopra answered |
(30 - 24) x 8 = 48
and (23 - 12) x 8 = 88
Therefore, (92 - 86) x 8 = 48.
Which one will replace the question mark ? 
- a)3
- b)2
- c)7
- d)6
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
3
b)
2
c)
7
d)
6
|
|
Nisha Dasgupta answered |
Putting the position of the letters in reverse order
P = 11, S = 8, V = 5 and Y = 2.
Which one will replace the question mark ? 
- a)12
- b)13
- c)11
- d)10
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
12
b)
13
c)
11
d)
10
|
|
Kirti Kumar answered |
(4 x 8) + 1 = 33
(5 x 9) + 1 = 46
Similarly, (7 x 11) + 1 = 78.
Which one will replace the question mark ? 
- a)6
- b)7
- c)8
- d)9
Correct answer is option 'A'. Can you explain this answer?
Which one will replace the question mark ?
a)
6
b)
7
c)
8
d)
9
|
|
Janhavi Chopra answered |
(5 + 3)/2 = 4
and (6 + 8)/2 = 7
Therefore (8 + 4)/2 = 6.
Which one will replace the question mark ? 
- a)9
- b)5
- c)7
- d)3
Correct answer is option 'A'. Can you explain this answer?
Which one will replace the question mark ?
a)
9
b)
5
c)
7
d)
3
|
|
Aarya Kumar answered |
5 x 8 x 10 = 400
and 6 x 9 x 7 = 378
Therefore 5 x 7 x ? = 315
? = 9.
Which one will replace the question mark ? 
- a)2
- b)4
- c)6
- d)8
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
2
b)
4
c)
6
d)
8
|
|
Janhavi Chopra answered |
(4 x 7) % 4 = 7
and (6 x 2) % 3 = 4
Therefore, (6 x 2) % 2 = 6.
Which one will replace the question mark ? 
- a)8
- b)12
- c)16
- d)20
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
8
b)
12
c)
16
d)
20
|
|
Mainak Malik answered |
(4 x 6) % 3 = 8
(6 x 10) % 5 = 12
(4 x 8) % 2 = 16.
Which one will replace the question mark ? 
- a)6
- b)7
- c)8
- d)9
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
6
b)
7
c)
8
d)
9
|
|
Kirti Kumar answered |
(10 + 9 + 14 + 7)/2 = 20
and (11 + 16 + 10 + 13)/2 = 25
Therefore, (15 + ? + 12 + 10)/2 = 22
Hence 37 + ? = 44
? = 44 - 37
? = 7.
Which one will replace the question mark ? 
- a)11
- b)14
- c)10
- d)12
Correct answer is option 'A'. Can you explain this answer?
Which one will replace the question mark ?
a)
11
b)
14
c)
10
d)
12
|
|
Manoj Mehta answered |
(15 - 12) + (10 - 9) = 4
(28 - 12) + (16 - 20) = 12
Similarly, (23 -11) + (15- 16) = 11.
Which one will replace the question mark ? 
- a)18
- b)24
- c)36
- d)58
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
18
b)
24
c)
36
d)
58
|
|
Mainak Malik answered |
(7 x 3) = 21 and (9 x 3) = 27
and (4 x 9) = 36 and (2 x 9) = 18
Therefore (9 x 6) = 54 and (4 x 6) = 24.
Which one will replace the question mark ?
- a)L10
- b)K15
- c)I15
- d)K8
Correct answer is option 'D'. Can you explain this answer?
Which one will replace the question mark ?
a)
L10
b)
K15
c)
I15
d)
K8
|
|
Preethi Sarkar answered |
How the number is obtained?
2 + 4 = 6
5 + 9 = 14
Similarly,
3 + 5 = 8
Therefore, the answer is K8.
Which one will replace the question mark ? 
- a)1
- b)4
- c)3
- d)6
Correct answer is option 'D'. Can you explain this answer?
Which one will replace the question mark ?
a)
1
b)
4
c)
3
d)
6
|
Sanjana Tiwari answered |
(5 + 4 + 7)/2 = 8
(6 + 9 + 5)/2 = 10
(3 + 7 + 2)/2 = 6.
Which one will replace the question mark ? 
- a)18
- b)12
- c)9
- d)6
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
18
b)
12
c)
9
d)
6
|
|
Anirudh Unni answered |
(12 + 18 + 30)/10 = 6
(16 + 24 + 40)/10 = 8
Similarly, (45 + 18 + 27)/10 = 9.
Which one will replace the question mark ? 
- a)13
- b)14
- c)12
- d)15
Correct answer is option 'D'. Can you explain this answer?
Which one will replace the question mark ?
a)
13
b)
14
c)
12
d)
15
|
|
Mainak Malik answered |
Sum of numbers in lower half of the circle = 11 + 9 + 3 + 7 = 30
Sum of numbers in upper half of the circle = ? + 4 + 5 + 6 = ? + 15
Upper half = Lower half
30 = ? + 15
? = 30 - 15
? = 15.
Threfore, 15 is the answer.
Which one will replace the question mark ? 
- a)64
- b)144
- c)169
- d)25
Correct answer is option 'A'. Can you explain this answer?
Which one will replace the question mark ?
a)
64
b)
144
c)
169
d)
25
|
|
Anirudh Unni answered |
The numbers are squared in ascending order
In first circle,
(3)2 = 9
(4)2 = 16
(5)2 = 25
(6)2 = 36.
In second circle,
(4)2 = 16
(5)2 = 25
(6)2 = 36
(7)2 = 49.
In third circle,
(6)2 = 36
(7)2 = 49
(8)2 = 64
(9)2 = 81.
Which one will replace the question mark ? 
- a)45
- b)41
- c)32
- d)40
Correct answer is option 'A'. Can you explain this answer?
Which one will replace the question mark ?
a)
45
b)
41
c)
32
d)
40
|
Sanjana Choudhary answered |
(15 x 2 - 3) = 27,
(31 x 2 - 6) = 56
and (45 x 2 - 9) = 81
Which one will replace the question mark ? 
- a)92
- b)72
- c)62
- d)99
Correct answer is option 'D'. Can you explain this answer?
Which one will replace the question mark ?
a)
92
b)
72
c)
62
d)
99
|
|
Dipanjan Pillai answered |
21 + 31 = 52
and 39 + 46 = 85
Therefore, 16 + 83 = 99.
Which one will replace the question mark ? 
- a)75
- b)26
- c)25
- d)20
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
75
b)
26
c)
25
d)
20
|
|
Manasa Sarkar answered |
(2)2 + (4)2 = 20
and (3)2 + (9)2 = 90
Therefore (1)2 + (5)2 = 26.
Which one will replace the question mark ? 
- a)20
- b)26
- c)25
- d)75
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
20
b)
26
c)
25
d)
75
|
|
Aarya Kumar answered |
(2)2 + (4)2 = 20
(3)2 + (9)2 = 90
Therefore, (1)2 + (5)2 = 26.
Which one will replace the question mark ? 
- a)1/2
- b)2/3
- c)3/4
- d)4/5
Correct answer is option 'D'. Can you explain this answer?
Which one will replace the question mark ?
a)
1/2
b)
2/3
c)
3/4
d)
4/5
|
|
Nisha Dasgupta answered |
From I row, 1 + (1/2) = 3/2
From II row, 2 + (2/3) = 8/3
From III row, 3 + ? = 19/5
? = (19/5) - 3
? = (4/5).
Which one will replace the question mark ? 
- a)9
- b)6
- c)15
- d)14
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
9
b)
6
c)
15
d)
14
|
|
Nisha Dasgupta answered |
(4 + 9 + 2) = (3 + 5 + 7) = (8 + 1 + 6)
Total in each case = 15.
Which one will replace the question mark ? 
- a)47
- b)45
- c)37
- d)35
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
47
b)
45
c)
37
d)
35
|
|
Janhavi Chopra answered |
(3 x 3) + (5 x 6) = 39
and (4 x 4) + (5 x 7) = 51
Therefore, (3 x 4) + (5 x 5) = 37.
Which one will replace the question mark ? 
- a)0
- b)2
- c)11
- d)12
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
0
b)
2
c)
11
d)
12
|
|
Asha Basak answered |
(6 + 5) - (7 + 4) = 0
and (7 + 6) - (8 + 4) = 1
Therefore (11 + 2) - (2 + 0) = 11.
Which one will replace the question mark ?
- a)14
- b)22
- c)32
- d)320
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
14
b)
22
c)
32
d)
320
|
|
Nisha Dasgupta answered |
(5 x 6 x 4)/10 = 12
and (6 x 7 x 5)/10 = 21
Therefore (4 x 8 x 10)/10 = 32.
Which one will replace the question mark ? 
- a)262
- b)622
- c)631
- d)824
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
262
b)
622
c)
631
d)
824
|
Pallabi Deshpande answered |
(915 - 364) = 551
(789 - 543) = 246
(863 - 241) = 622.
Which one will replace the question mark ? 
- a)36
- b)48
- c)38
- d)30
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
36
b)
48
c)
38
d)
30
|
Debanshi Saha answered |
(0 + 2 + 6 + 4) - 2 = 10
and (6 + 2 + 10 + 8) - 2 = 24
Therefore, (4 + 14 + 12 + 10) - 2 = 38.
Which one will replace the question mark ? 
- a)15
- b)19
- c)20
- d)18
Correct answer is option 'D'. Can you explain this answer?
Which one will replace the question mark ?
a)
15
b)
19
c)
20
d)
18
|
|
Asha Basak answered |
(3 x 4) + 3 = 15
and (7 x 5) + 3 = 38
Therefore (3 x 5) + 3 = 18.
Which one will replace the question mark ? 
- a)8
- b)32
- c)4
- d)16
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
8
b)
32
c)
4
d)
16
|
|
Shalini Kumar answered |
(16)2 = 256
Therefore, (2)2 = 4.
Which one will replace the question mark ? 
- a)4
- b)6
- c)9
- d)8
Correct answer is option 'B'. Can you explain this answer?
Which one will replace the question mark ?
a)
4
b)
6
c)
9
d)
8
|
Aman Chatterjee answered |
3 x 5 x 4 = 60
and 5 x 7 x 4 = 140
Therefore, 4 x 4 x ? = 96
? = (96/16) = 6.
Which one will replace the question mark ? 
- a)1
- b)2
- c)3
- d)4
Correct answer is option 'A'. Can you explain this answer?
Which one will replace the question mark ?
a)
1
b)
2
c)
3
d)
4
|
|
Aman Chatterjee answered |
(2)2 = 4
(8)2 = 64
(5)2 = 25
(1)2 = 1.
Which one will replace the question mark ? 
- a)33
- b)38
- c)32
- d)37
Correct answer is option 'D'. Can you explain this answer?
Which one will replace the question mark ?
a)
33
b)
38
c)
32
d)
37
|
|
Aarya Kumar answered |
(5 x 6) + 2 = 32
(7 x 6) + 2 = 44
(7 x 5) + 2 = 37.
Which one will replace the question mark ? 
- a)25
- b)37
- c)41
- d)47
Correct answer is option 'C'. Can you explain this answer?
Which one will replace the question mark ?
a)
25
b)
37
c)
41
d)
47
|
|
Nishtha Khanna answered |
(5 x 3) + 4 = 19
and (6 x 4) + 5 = 29
Therefore, (7 x 5) + 6 = 41
Which one will replace the question mark ? 
- a)660
- b)670
- c)610
- d)690
Correct answer is option 'D'. Can you explain this answer?
Which one will replace the question mark ?
a)
660
b)
670
c)
610
d)
690
|
|
Niti Iyer answered |
(1)2 + (5)2 + (4)2 + (3)2 = 51 x 10 = 510
and (3)2 + (4)2 + (6)2 + (2)2 = 65 x 10 = 650
Similarly (0)2 + (1)2 + (2)2 + (8)2 = 69 x 10 = 690.
Chapter doubts & questions for Puzzles - CSAT Preparation 2025 is part of UPSC CSE exam preparation. The chapters have been prepared according to the UPSC CSE exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for UPSC CSE 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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