Category Archives: 7puzzleblog.com

DAY/DYDD/GIORNO/NAP 332:

The Main Challenge If you eliminated multiples of 3, 5 and 7 from this list: 12   14   18   21   25   28   30   33   35   36   40   42   44   48   54   55   56   60 which is the ONLY number that would … Continue reading

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DAY/DYDD/GIORNO/NAP 331:

The Main Challenge Here is an interesting logic puzzle for you to try. Insert the numbers 1-9 into the correct positions in this 3-by-3 grid after studying the seven clues below. Each number should appear exactly once. x         … Continue reading

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DAY/DYDD/GIORNO/NAP 330:

The Main Challenge This is a number trail involving ten arithmetical steps. Be careful with your calculations – and no calculators please! Start with the number 40, then: multiply by 4 +10% subtract 15 divide by seven add nine 1/2 of this … Continue reading

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DAY/DYDD/GIORNO/NAP 329:

The Main Challenge . . . is a Mathelona number puzzle where you must solve all four lines arithmetically by filling the 16 gaps below with digits 0-9. Each digit 0-9 can only be inserted a maximum of TWICE in the whole … Continue reading

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DAY/DYDD/GIORNO/NAP 328:

The Main Challenge . . . will get you thinking of the 5- and 7-times tables, plus some addition. What is the total of the first SEVEN whole numbers that have a 5 or 7 as part of their number … Continue reading

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DAY/DYDD/GIORNO/NAP 327:

The Main Challenge . . . is a tricky question that’s a real mouth-watering prospect for the number puzzle enthusiast. Using the numbers 1, 2, 3, 4 and 5 once each, with + – × ÷ available, it is possible to make the … Continue reading

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DAY/DYDD/GIORNO/NAP 326:

The Main Challenge Only one of the following 2-digit even numbers can be divided exactly by 6. Which one? 26  34  38  44  46  50  56  62  64  74  78  86  98 The 7puzzle Challenge The playing board of the 7puzzle … Continue reading

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DAY/DYDD/GIORNO/NAP 325:

The Main Challenge Your task is to arrive at the target number of 22 by adding together five numbers. You are limited to using 1-5, but these can be used any number of times. Can you find the THREE ways … Continue reading

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DAY/DYDD/GIORNO/NAP 324:

The Main Challenge This challenge has been taken from our series of Mathelona number puzzle pocket books. Can you complete this task so all three lines work out arithmetically when inserting the digits 0 0 1 1 1 2 3 4 … Continue reading

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DAY/DYDD/GIORNO/NAP 323:

The Main Challenge A number puzzle associated with our board game, Mathematically Possible, an excellent resource involving mental arithmetic and strategy. Further details can be found by clicking the link. Using the numbers 1, 3 and 6 once each, with … Continue reading

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