Category Archives: 7puzzleblog.com

DAY/DYDD/GIORNO/NAP 97:

The Main Challenge When each letter of the English alphabet is given a numerical value, A=1 B=2 C=3 . . . Z=26, and the values of the individual letters are added together, which day of the week has the highest total and … Continue reading

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DAY/DYDD/GIORNO/NAP 96:

The Main Challenge Study the seven clues below and place the numbers 1-9 into the nine positions. Each number should appear exactly once in this grid. x              x             … Continue reading

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DAY/DYDD/GIORNO/NAP 95:

The Main Challenge Can you place the numbers 0 1 1 2 2 3 3 4 6 6 7 and 7 into the 12 gaps below so that all three lines work out arithmetically? ◯  +  ◯   =   … Continue reading

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DAY/DYDD/GIORNO/NAP 94:

The Main Challenge Using the numbers 3, 5 and 5 once each, with + – × ÷ available, which FOUR numbers from the following list are NOT mathematically possible to make? 1   2   3   4   7   10   13   15   18   20  … Continue reading

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DAY/DYDD/GIORNO/NAP 93:

The Main Challenge Your task is to arrive at the target answer of 18 by using each of the four numbers 2, 6, 7 and 10 exactly once each, with + – × ÷ available. Can you find TWO ways … Continue reading

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DAY/DYDD/GIORNO/NAP 92:

The Main Challenge By following these rules, list SEVEN different positive whole numbers that total 100: each number must be at least 4 away from its nearest neighbour, the list must contain at least three square numbers. Can you find at … Continue reading

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DAY/DYDD/GIORNO/NAP 91:

The Main Challenge What is the total of all the square numbers from 1-100 inclusive? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84. The 6th & 7th … Continue reading

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DAY/DYDD/GIORNO/NAP 90:

The Main Challenge When playing the brilliant 24game, your task is to arrive at the target answer of 24. Each of the four numbers 0.5, 1, 5 and 10 must be used exactly once each in your calculation.  The four … Continue reading

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DAY/DYDD/GIORNO/NAP 89:

The Main Challenge Of the numbers 1, 2, 3 . . . 6000, how many are NOT multiples of 2, 3 or 5? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from … Continue reading

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DAY/DYDD/GIORNO/NAP 88:

The Main Challenge In our latest Mathelona challenge, can you place the 12 listed numbers into the 12 gaps so all three lines work out arithmetically? 0    1    1    2    2    3    4    5    … Continue reading

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