NumberTrivia Questions & Answers
12 number trivia questions, each with the correct answer and a short explanation.
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Each question reveals the answer and a quick explanation below it.
1. What number comes next: 1, 2, 4, 8, ?
Answer: 16. Each term doubles the previous, so 8 x 2 = 16.
2. What number comes next: 2, 6, 12, 20, 30, ?
Answer: 42. Differences increase by 2 (4,6,8,10,12), so 30 + 12 = 42.
3. What number comes next: 1, 2, 4, 7, 11, ?
Answer: 16. Differences increase by 1 each time (1,2,3,4,5), so 11 + 5 = 16.
4. What number comes next: 100, 96, 88, 76, 60, ?
Answer: 40. Subtractions grow by 4 each step (4,8,12,16,20), so 60 - 20 = 40.
5. What number comes next: 5, 11, 23, 47, ?
Answer: 95. Each term is double the previous plus 1, so 47 x 2 + 1 = 95.
6. What number is missing: 7, 14, 28, ?, 112?
Answer: 56. Each term doubles, so 28 x 2 = 56 and 56 x 2 = 112.
7. What number comes next: 2, 12, 36, 80, 150, ?
Answer: 252. Terms equal n squared times (n+1): 5x5x6=150, 6x6x7=252.
8. What number comes next: 4, 9, 19, 39, 79, ?
Answer: 159. Each term is double the previous plus 1, so 79 x 2 + 1 = 159.
9. What number comes next: 7, 10, 8, 11, 9, 12, ?
Answer: 10. The pattern alternates +3 then -2, so 12 - 2 = 10.
10. What number comes next: 2, 5, 10, 17, 26, ?
Answer: 37. Terms are n squared plus 1: 6 squared plus 1 equals 37.
11. What number comes next: 3, 7, 16, 35, 74, ?
Answer: 153. Rule: next = previous x2 + k, where k increases by 1 each step (x2+1, +2, +3, +4, +5): 74x2+5 = 153.
12. What number comes next: 6, 24, 60, 120, 210, ?
Answer: 336. Terms are products of three consecutive integers: 6x7x8 equals 336.
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