DAY 291

Today’s Challenge

Read the following facts to work out my identity:

  • I am a 2-digit number
  • my two digits have a difference of four
  • add 13 to me and I become a square number

Who am I?

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The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from up to 84.

The 2nd & 3rd rows contain the following fourteen numbers:

8     13     17     25     28     36     42     45     48     55     63     64     66     80

What is the difference between the highest and lowest multiples of 5?

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Answers

. . . can be found when clicking this.

7puzzleblog

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