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By changing the second letter of each word below, you can make another valid word.

Can you change each word such that the second letters will reveal an eleven-letter word when read downwards?

Therefore, what now reads 'awpydnucepa' will be a real word.
bake swap opal dyed idle snow lump aces melt spun rant

Puzzle Copyright © Kevin Stone

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Starting with any number on the top row, make your way to the bottom, adding the numbers as you go.

Each time you must move to the next row, but you can move either straight down, or one place to the left or right.

What is the highest total you can make? What is the lowest?

1	5	1	5	1	5
3	3	2	3	3	4
2	3	4	4	3	2
2	2	3	2	2	4
2	2	4	3	4	2
4	4	4	4	2	3

Note: this puzzle is not interactive, and the numbers cannot be clicked.

Puzzle Copyright © Kevin Stone

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What number comes next in this sequence:

16 · 21 · 26 · 26 · 12 · 5 · ?

Puzzle Copyright © Kevin Stone

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If I was in Florida and dropped a heavy ball into a bucket of water which was at a temperature of 45 °F and dropped another identical ball into an identical bucket of water at a temperature of 25 °F …

… which ball would hit the bottom of the bucket first?

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