coverPlease do NOT post your answers, but do say if you think you have solved the puzzles and how long it took. Solution on Monday. OK, there are 2 puzzles this week:

1) Can you work out the next letter in this sequence?


2) What occurs once in every minute, twice in every moment but never in a thousand years?

I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED and is available for the Kindle(UKhere and USA here) and on the iBookstore (UK here in the USA here). You can try 101 of the puzzles for free here.


  1. I thought I had the first one but the last letter isn’t what I thought it would be… Are you sure it’s right? Second one was easy

  2. There was me thinking I was a smart arse for suspecting a typo, but it looks like everyone got there before me!

  3. I’m thinking typo. Took a minute or two to get there. Second one pretty much instantaneous. “Millenium” got a nice ring to I’ll. “Millenium” just rolls around the mouth. “Millenium, millenium” oooh – I’ve said it too much now, it gone weird.

    1. For filth the word “Dawkins” beats all of your proposals hands down (and you can guess what part of the body the hands are down if you like)

    1. He has fixed it. Half of me was hoping it wasn’t a typo and that we’d all made an incorrect assumption.

    1. I didn’t get the last two either, and I usually find the logic and maths puzzles easy.

      This one I got very quickly. It’s not logical, its observational.

  4. The typo had already been fixed when I encountered the puzzle page. Each puzzle enjoyably clever, yet a cinch to work out. Took only a quick tick-tock or two to figure out both,

  5. The typo was corrected when I saw this, and I get in to work very early in the morning. Where do all you folks live that you see these puzzles long before I do?

  6. 1. Got it fast – about a minute.
    2. Read the comments, figured I’d never get this one, then went back for a last try and got it immediately.
    3. Now I can feel like a genius this weekend!

  7. 2nd one would be better if it was
    ” What occurs once in every minute, twice in every moment but only twice in a thousand years?”

  8. Second one was easy and the first one took me a little bit. First time I actually manage to solve a Friday puzzle o_o

  9. I’d actually finished my coffee before I re-read and answered question one,
    The second one is an old one which will occur twice in my lifetime, never in anyone else’s.

  10. Got them both almost immediately. I love them but each is so slight, I see why you offered two. No misprint. In the first one, whatever would the answer be if the letter you think should be the last letter, were? Chew on that..

  11. Richard,
    Please post original stuff. I couldn’t solve No1, but a swift Google did the trick.

    Let’s have some real challenges – you’re a Prof, right?

  12. Thanks for yet more delightful puzzles, Richard πŸ™‚ The answer to the second puzzle came to me instantly (probably took about ten seconds to see and confirm it). The first took a little bit longer, maybe two or three minutes until the penny dropped, so thanks for another enjoyable brain workout for the weekend πŸ™‚

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