Entertainment / Number Puzzles

S.No Solve Click the Button Answer
1 What are the last two Numbers (?,?)
1,100, 10, 50, 19, 0, 28, -50, 37, -100,?,?
+9,-50.
Clue: Here 2 alternative sequences: +9,-50.
2 What is the last Number (?)
1, 25, 39, 65, 4, 24, 50, 78, 28, 50, 37,?
115= 28 + 50 +37
Clue: Add 3 digits to get the fourth value
3 What is the last Numbers (?)
2, 3, 4, 6, 9, 14, 22, 35,?
56= 22 +35 -1
Clue: Add 2 digits -1
4 Which number is odd one out?
5986 8145 3461 9163 7566 2341 4572
9163
Clue: First two numbers sum = Last two numbers sum.
5 What’s the next Number (?)
1 16 27 64 125 216 ?
343
Clue: Sum of cubes of natural numbers (0 to Infinity).
6 What’s the next Number (?)
1 3 8 15 24 35 48 ?
64-1=63
Clue: Sum of square of natural number -1.
7 What’s the next Number (?)
7, 15, 23, 31, ?
64-1=63
Clue: Difference of squares of natural odd numbers -1.
(1, 3, 5, 7, 9……….)
(1,3)(3,5)(5,7)(7,9)(11,13)
8, 16, 24, 32, ? 48
7, 15, 23, 31, 47
8 What’s the next Number (?)
144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, ?
10946
Clue: Add two numbers to generate the next number.
9 What’s the next Number (?)
1, 2, 4, 8, 16, 32, 64, ?, 256,
128
Clue: The Numbers are in Geometric progression (a, ar, ar2, ar3…..).
10 What’s that Number (?)
3, 6, 9, 12, 15, 21
18
Clue: The Numbers are in arithmetic progression (a, a+d, a+2d, a+3d…..).
11 What’s that Number (?)
1, 1.414, 1.7320, 2, 2.2360, ?.
2.4494
Clue: Square root of natural numbers (0 to Infinity).
12 What’s that Number (?)
1, 0.5, 0.33, 0.25, 0.2, ?.
2.4494
Clue: Cube root of natural numbers (0 to Infinity).
13 What’s that Number (?)
1, 0.5, 0.33, 0.25, 0.2, ?.
2.4494
Clue: Cube root of natural numbers (0 to Infinity).
14 What’s that Number (?)
12 34 56 (?)
78
Clue: First nuber is odd and second is even.


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