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November 2025 Challenge

Each month, a new set of puzzles will be posted.  Come back next month for the solutions and a new set of puzzles, or subscribe to have them sent directly to you.

Click here to download the printable version

 

What’s the value?

Each of the five symbols below stand for a different number.  In order to reach the totals at the end of each row and the bottom of each column and a diagonal, what is the value of the diamond, triangle, heart, club and spade?

Riddle Challenges

  1. In a stable there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable?
  2. Dr Watson has a new card puzzle for Sherlock Holmes. He picks four cards out of the pack of 52 cards and lays them face down on the table. He offers five hints to Sherlock (below).  Sherlock smiles and tells all the four cards to Dr Watson. What did he say?
    • Any card cannot be greater than the one to its right.
    • The difference between the 1st card and 3rd card equals eight.
    • None of the Aces is present.
    • No face card has been included i.e. no queen king and jacks.
    • The difference between the 2nd and 4th card is 7.
  3. When completed in 1889 for the world fair in Paris, the Eiffel Tower was considered an ‘Engineering innovation’ but a ‘Monstrous creation’ and at the time, was the tallest man-made structure in the world. Designed by the French engineer Alexandre-Gustave Eiffel, its original height can be determined by the following description as 492 feet plus half its original height. From this description, can you determine the original height of the Tower (in feet and in metres)?

Feedback

There are more than one way of doing these puzzles and may well be more than one answer.  Please let me and others know what alternatives you find by commenting below.  We also welcome general comments on the subject and any feedback you'd like to give.

If you have a question that needs a response from me or you would like to contact me privately, please use the contact form.

 

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Last month's solutions

Click here to download the printable version

 

Puzzle One

This puzzle has four larger interconnecting circles with each divided into four quadrants.

The number in each quadrant represents the sum of the three values in the smaller outer circles associated with that quadrant.

In the eight smaller circles surrounding each of the larger circles, their values can only be 1 to 8 with no duplications.

Starting at the bottom and working upwards in the diagram, as shown, find the value of ‘?’ in the smaller circle at the top of the diagram.

Two values have been provided to get you started.

Answer = 1

Solution:

Puzzle Two

A corporate businessman has two cubes on his office desk, shown below. Every day he arranges both cubes so that the front faces show the current day of the month What numbers are on the faces of each cube to allow this?

Solution:

Cube One has the following numbers: 0, 1, 2, 3, 4, 5

Cube two has the following numbers: 0, 1, 2, 6, 7, 8

The 6 doubles as a 9 when turned up-side down.

There is no day 00, but you still need the 0 on both cubes in order to make all the numbers between 01 and 09.

Alternate solutions are also possible e.g.
Cube One: 0,1, 2, 4, 5, 6
Cube Two:  0,1, 2, 3, 7, 8

 

 

 

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