Answers to number series puzzles

Here are the answers of the post Number series arrangements puzzles.

1. The next number in the series is 16

27 -> abs(2^7 - 27) = 101
101 -> abs(10^1 - 101) = 91
91 -> abs(9^1 - 91) = 82
82 -> abs(8^2 - 82) = 18
18 -> abs(1^8-18) = 17
17 -> abs(1^7) = 16

2. The next number in the series is 13729

8 3
9 9
10 27
11 81
12 243
13 729

3. The missing number in the series is 94310

1 3 2
3 13 4
5 23 6
7 33 8
9 43 10
11 53 12

4. The missing numbers in the series are 37, 37, 40

31 -> 31+3=34 repeat 1 time
34 -> 34+3 = 37 repeat 4 times
37 -> 37+3 = 40 repeat 7 times

5. The next number in the series is 8072

5 8
10 24
20 40
40 56
80 72

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