Puzzle 749
What number comes next in this sequence:
1 · 4 · 1 · 5 · 9 · 2 · ?
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answer
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Hint
The full sequence starts with 3.
Answer
6.
These are the decimal places of π ≈ 3.1415926.
Puzzle 750
You can replace the dashes with the same four-letter word, and create two new words, one that starts with ARM, and one that ends in ING.
Can you find all possible four-letter words that work?
arm----
----ing
Puzzle Copyright © Kevin Stone
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answer
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Hint
There are 4 possible answers.
Answer
Band, load, lock, and rest, all create new words:
armband and banding
armload and loading
armlock and locking
armrest and resting
Note
Some dictionaries also allow ARMRACK, but others don't. So RACK is a unofficial possible answer.
Puzzle 751
Which letters come next in this sequence:
NE · US · RN · ER · RS · ?
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Answer
TH.
The last two letters of the planets in reverse order from the sun.
Puzzle 752
What number comes next in this sequence:
1 · 8 · 9 · 64 · 25 · 216 · 49 · ?
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Hint
Think of squares and cubes.
Answer
512.
Each term alternates between a square and a cube, 8 3 = 512.
