Category Archives: 7puzzleblog.com

DAY/DYDD 113:

The Main Challenge Here is a unique 7-part question. Answer all seven parts:  (4 + 3) + (2 – 1)  =  ?  (4 × 3) ÷ (1 × 1)  =  ?  (4 – 3) × (2 ÷ 1)  =  ?  (3 + 3) ÷ (2 × 1)  =  … Continue reading

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DAY/DYDD 112:

The Main Challenge If you multiply a mystery number by 6 and then subtract 6, the result is the same as if you first multiplied the same mystery number by 3 and then added 3. Is the value of this mystery number 1, … Continue reading

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WELCOME/CROESO

A warm Welsh welcome to 7puzzleblog.com and our compendium of daily number puzzles. Five challenges are posted each day, seven days a week, and designed for our many followers from nearly 170 countries & territories throughout the world. As well as our ever-expanding website … Continue reading

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DAY/DYDD 111:

The Main Challenge This describes a particular number less than 100:  its digits add up to 12,  if the unit digit is subtracted from the tens digit, then doubled, the answer is also 12. What is the number? The 7puzzle Challenge … Continue reading

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DAY/DYDD 110:

The Main Challenge Carry out these instructions in our 7-step challenge:  Work out the sum of 4 and 6,  Calculate the product of 4 and 6,  Find the difference between the two answers in Points 1 and 2,  Square the … Continue reading

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DAY/DYDD 109:

The Main Challenge Last chance to get all seven correct. Be careful as there may be one or two tricky ones!  (1 – 2) – (3 – 4) = ?  4 ÷ 0.5 = ?  What is 25 less than the product of … Continue reading

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DAY/DYDD 108:

The Main Challenge Here’s seven more mental arithmetic questions to try.  Can you get all seven correct?  (11 – 5) – (4 + 1) = ?  What is 10 more than –4?  47 × 4 = ?  0.32 ÷ 4 = ?  3/4 × … Continue reading

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DAY/DYDD 107:

The Main Challenge Here’s seven tricky mental teasers to try:  (18 – 5) – (7 – 17) = ?  128 + 294 = ?  How many seconds are in a quarter-of-an-hour?  How many degrees are in three-quarters of a circle?  (16 – 8) × (13 … Continue reading

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DAY/DYDD 106:

The Main Challenge Here are seven mental arithmetic questions for you to try:  Which number multiplied by itself gives 196?  What is 50 + 400 + 5?  54 – 45 = ?  If Jo runs 10 miles in one hour, … Continue reading

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DAY/DYDD 105:

The Main Challenge How quickly can you correctly answer the following seven questions?  (17 – 4) + (12 – 9) = ?  (3 – 2) – (16 – 16) = ?  What is two-thirds plus three-quarters?  109 + 10 = ?  (3 + 16) + … Continue reading

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