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What comes next in this sequence:

boron · carbon · nitrogen · oxygen · ?

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What is it that goes up and goes down …

… but does not move?

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Here is a well-known proverb with the consonants removed. What is the proverb?

-oo- -e-o-e -ou -ea-.

Puzzle Copyright © Kevin Stone

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Which is larger:

seconds in a year. miles that light can travel in 3 minutes.

Puzzle Copyright © Kevin Stone

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