Puzzle 13
What are the next three characters in this sequence:
2 · 1 · F · 1 · 1 · F · 0 · 1 · F · 9 · F · ?
Puzzle Copyright © Kevin Stone
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Answer
8 F 7.
This is the sequence F7, F8, F9, F10, F11, F12, written backwards.
Often seen on a computer keyboard.
21F 11F 01F 9F 8F 7F
Puzzle 14
Can you find every occurrence of the word MARCH that appears in this grid (horizontally, vertically, or diagonally)?
The hint will reveal the number of times it occurs, but where are they?

Note: this puzzle is not interactive, and the letters cannot be selected.
Puzzle Copyright © Kevin Stone
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Hint
The word MARCH appears 46 times.
Answer
The word MARCH appears 46 times.
Puzzle 15
Can you find a 5-digit number …
… whose digits add up to 18 and whose product is 210 and the digits increase from left to right in the number?
Puzzle Copyright © Kevin Stone
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Hint
Break down 210 into its factors.
Answer
12357.
Reasoning
Since 210 = 2 x 3 x 5 x 7, 12357 is the only way to get a 5-digit number, in ascending order.
Puzzle 16
Which name is missing from this sequence:
Joshua · Caleb · Eric · ? · Vince · Cliff · Craig
Choose from:
Simon, Steve, Bob, Edward, Frank, Gavin
Puzzle Copyright © Kevin Stone
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Hint
The answer involves the alphabet in some way.
Answer
Edward.
Reasoning
The last letters of the names are in alphabetical order.
Joshu-a
Cale-b
Eri-c
* Edwar-d
Vinc-e
Clif-f
Crai-g