Mensa Mensa IQ Numerical Pattern Recognition Questions and Answers 5 — Questions and Answers
Question 1: What number follows: 17, 19, 23, 29, 37, ?
- 41
- 43
- 45
- 47 (Correct answer)
Correct answer: 47
The differences are 2, 4, 6, 8, 10 — even numbers increasing by 2, so 37 + 10 = 47.
Question 2: Find the next number: 1, 8, 27, 64, 125, ?
- 196
- 216 (Correct answer)
- 225
- 256
Correct answer: 216
These are perfect cubes (1³, 2³, 3³, …), so the next is 6³ = 216.
Question 3: What is the missing number in: 6, 11, 21, 41, 81, ?
- 151
- 161 (Correct answer)
- 162
- 163
Correct answer: 161
Each term is approximately doubled and 1 subtracted: 81 × 2 − 1 = 161.
Question 4: Identify the next term: 2, 6, 18, 54, 162, ?
- 324
- 406
- 486 (Correct answer)
- 540
Correct answer: 486
Each term is multiplied by 3: 162 × 3 = 486.
Question 5: What comes next: 144, 121, 100, 81, 64, ?
- 44
- 49 (Correct answer)
- 51
- 36
Correct answer: 49
These are descending perfect squares (12², 11², 10², …), so the next is 8² = 64 — wait, next is 7² = 49.
Question 6: Find the missing number: 3, 7, 15, 31, 63, ?
- 121
- 125
- 127 (Correct answer)
- 128
Correct answer: 127
Each term is doubled and 1 added: 63 × 2 + 1 = 127.
Question 7: What is next in the sequence: 9, 16, 25, 36, 49, ?
- 56
- 60
- 64 (Correct answer)
- 81
Correct answer: 64
These are perfect squares starting from 3²: the next is 8² = 64.
What number follows: 17, 19, 23, 29, 37, ?