I'm gussing that it's a sort of maze that needs to be followed?

all the letters on the card are the right way up for how they need to be read...

the card has four sides....try using all of them

in simpler terms, its looking for a number that, when you reverse the digits, then double it, then take away 1, it equals the original number.

creating four columns 1) a list of all whole number (1,2,3...) 2) a list of those whole numbers next to it, but with its digits reversed (e.g. 12 becomes 21) 3) a list that doubles the 'reversed' number 4) a list that adds 1 to the whole number and then halfs it. Where an entry first matches in column 2 and 4, this should give you the answer.

that the number cannot be one through 9 because they can't be reversed?

anything bigger than 10....

I decided on an Excel solution as well, except my formula was slightly different. Got there in the end though!

You can skip a lot of numbers due to simple logic. For example, when you get to 23, reversed it's 32, which is already much greater than 23, let alone doubling itt etc. Same with 20-anything greater than 22, in fact, so that's 8 numbers skipped right there.

Read the it the right way round first, then rotate it one way and carry on - if it doesn't make any sense try it the other way!

If the two digits are the same reversing them then doubling up will have exactly the same effect as doubling the original number. Therefore, the solution can only be found in a number in which the first digit is higher than the second.

follow the following pattern: 10 20 21 30 31 32 40 etc. You'll soon find the correct result.

the first digit needs to be *about* two times the second digit. A bit of trial and error should see you right.

Look at the letters and you will see that they are different ways up. If you write down all the letters, left-to-right, top-to-bottom, that are the right way up, you will see something emerge. Next, turn the card so that another set of letters is up the right way and do the same. Continue until all the letters have been used. Ignore the blank spaces in the grid. Once you have done this, put the lines of text you have written into the correct order and you will have the question.

where your 2 digit number is xy the parameters set out in the puzzle can be represented by the following equation 10x + y = 2x + 20y - 1 you can break this down further to get equations which will give you a value for x or y given the other digit. put the numbers 1 to 9 into the equation and which ever number gives you an integer answer fits the pattern. All you need to do then is pick the lowest one.