imagesCan you write down the number 8 eight times so that they add up to 1000? They can be next to each other or under each other or any combination.

The answer to this puzzle, and 100 others,  can be found in a new kindle ebook called PUZZLED, and is available in the UK here and USA here.

62 comments

  1. It took me 5 minutes although I expected it to be impossible for me. All of a sudden I discovered one of the answers. I think there are several answers. Where will we find an answer?

  2. Seems to be too easy..maybe that’s the real test? see how many that starts looking for “harder” solutions? some strange psychology test..

  3. Hmm, about 2 mins -which surprised me, I am normally rubbish at these! AS long as I have read the question right. Oh well, we shall see!

  4. Takes 10-15 seconds of induction to come up with the straightforward answer. Parsing the questions took a bit of extra time since it seems designed to lead one away from the straightforward answer.

  5. I got it after a couple of minutes. Then I realized that you meant the *digit* 8, not the *number* 8, and came up with the answer you were probably looking for. That answer took a couple of seconds.

    My first answer is an arithmetic expression using the basic operators +, – , *, and /, as well as brackets for order of operations. It uses the number 8 exactly 8 times, and no other numbers. It was a much more interesting puzzle, but much harder. 😛 A solution with fewer 8s is easier.

  6. Took a few minutes, but I blame watching TV at the same time for the delay as the solution I arrived at is trivial eventually.

  7. I first went all over the place, trying to be lateral and combining roman numerals with arabic numerals etc. When I saw on here that people found it easy, I went and did it the easy way too. I’ll try and remember in future to look for an easy way before starting to think laterally…

    (and no, there was no division or subtraction involved, just adding up)

  8. First attempt. Just from the puzzle you can figure out where some of the 8s need to be. Once you put those down on paper, it’s pretty easy to see where the rest of them go.

  9. Got it in less than a minute, too 😀 People who are having trouble, pay attention to the way he words it. It’s pretty obvious after you get it.

  10. About 30 seconds with pen and paper. It turned out to be easier than I thought it would be.

    Oh and Anita… no solutions until Monday please!

  11. A few minutes, but math is not my strongest skill.
    Just took some scratch paper and started by thinking which multiples of 8 end in zero? to determine how many to stack in the far right column. From there it was pretty easy to place the remaining eights.

  12. About 10 seconds after I read the rules properly. For some odd reason I thought it said add to 1000000.

    About 3 minutes total.

  13. A few minutes, as usual I was over thinking it again to start with trying to make it more complicated that it actually was and then it clicked! 🙂

  14. You see Karen is a bear of very little brain when it comes to anything beyond arithmetic, and couldn’t grasp the average speed puzzle even after it was so well explained so don’t beat yourselves up looking for subtle, cos it ain’t there.
    Karen

  15. It took me about a minute. It was pretty easy to do in my head, since I took what I think to be an obvious approach to the problem.

  16. did this in my head in just a few seconds. Was surprised because maths isn’t my strongest point, but the answer was actually more logical than mathematical.

  17. About 15 seconds, as long as it took to parse x1=3 y=5 x2=1+8-(x&y) which will make no sense unless you’ve figured it out, and possibly none anyway.

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