Mental Floss brain game

24Jul/101

Mental Floss is one of my very favorite magazines. Here's a simple (if you see it) puzzle from their web-site:

The answer is here.

Sue VanHattum
July 24th, 2010 - 08:51

I didn’t see it, and had to look at their answer.

Here’s a hint, for people who don’t want the answer, but are stuck…
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Don’t look down if you don’t want the hint…
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A big number farther out in the sequence is 20,005.