Brain Challenge Answers

August 2022

Did you feel your Working Memory in action?

Working Memory Challenge

Hint: Begin with Line 1 to give you a clue as to the value of the cats.

The answer is 3

(Watch out for the the multiplication sign)
Line 1: ? x ? + 1 = 17 And so ? x ? must equal 16. 4 x 4 = 16 so that cat = 4
4 x ? x ? = 36
We know the Cat = 4, so the Mouse must = 3
4 x 3 x 6 = 72 (3 cheeses)
So 4 – 3 + 2 = 3


You have 4 answers to choose from.

How many 5s are there between 1 and 70?

  (c) 17



Ready for some riddles?

A father’s age is three times his son’s age.
After 5 years, the son will be 17 years old.
His father is 41 years old.

What time is it when an elephant sits on the fence?
Time to fix the fence!


What can you hold in your right hand but never in your left hand?
Your left hand

Before Mt. Everest was discovered, what was the highest mountain in the world?
Mt. Everest – it just hadn’t been discovered yet!



Which fits the pattern?

Option F
( Note the way the patterns move in sequence)


Find the missing letters

There is a three-letter sequence missing from each of these words. What is it?  M E N




 M E N I A L

Which is the correct answer?

Tip: Remember the Bodmas rule

After we eliminate the Brackets step (there aren’t any) , then the Orders step (there are none in this problem), we are left with division/ multiplication.
Because we have both division and multiplication in the problem, we just do these operations as we read the problem….from left to right (like reading a book).
-3 x0 =0
+3/3 =+1
So now the problem reads:
This equals 4.

Option C is the answer

(Gillian’s apologies to those who puzzled over the previously posted answer – Reader David S. brought the error to our attention. Thank you, David!)


Use your nonverbal and coordination skills.

Did you enjoy trying to do this? The results don’t matter, really, unless you love completing a beautiful finished piece of art.

What matters is activating those often unused neural pathways.

Spot the different Crown.

Too easy? We will give you a harder one next time!





Need more practice?

Healthy Memory Workout is an eBook full of puzzles to challenge your brain


Want to improve your puzzling?

Puzzle Secrets is a companion eBook with hints and strategies for solving puzzles.