Brain Teasers are Back!

The question mark is 23.
Firstly it is the same as column 2 (it contains the same symbols) and in any event there is no need to work out the value of each symbol.
(I’m a retired accountant, so the sum of the column totals was always double-checked to be the sum of the row totals in any schedule of figures especially before Excel etc).

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Nicely spotted Steve.

We sometimes become engrossed in the detail and loose sight of the big picture.

The individual numbers are easy enough to determine, as you know. I’ll leave those for others to enjoy.

How many squares can you identify in the diagram below ?

(If you measure them with a micrometer, there are probably none !)

But, within the limits of my draughting skills within Powerpoint there are … ?

16?

Plane = 9, Boat = 5, Train = 6, bike = 7. ? = 23.

I hope you haven’t developed square eyes Mike.

But nevertheless, on the ball as usual.

Well done.

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Yep. Spot on.

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I found the 8x8 tiled square (see link) to be quite relaxing.

I did have to print and cut the sets of tiles in order to find the solution. And it did take me a couple of false starts whereby I got (say) 75% of a solution and couldn’t get the remaining 25% of the tiles to fit, but that’s what some of these teasers are all about.

Anyway, worth a try IMHO and you all have access to the solution if it gets too frustrating !!

How many rectangles (note for the accountants:- that includes squares) can you identify in the diagram below ?

I would add, for the avoidance of doubt, that I know it should be “profit and loss”

Hi Toby,

I hope you are going to share your morally influenced answer with the Forum ?

Cheers
Don

To be honest I don’t know, but in all actuality I don’t think they have any difference.
That teacher using 70% own findings will use some past reference anyway to provide some context - maybe some 20%.
That teacher using 30% own findings may lose some 20% of the past professors teaching by lack of interest by the students, thinking they are being taught by someone somewhat less vital. Perhaps.

Although that’s not taking into account either teachers ability to inspire regardless of any %.

But that 20% is what could be the difference here. Either by upholding tradition or by constructive creativity.
The students interpretation is key as both teachers can be either. Perhaps.

a) 21
b) 22
c) 23
d) 24

Transport Spreadsheets

Each symbol has a value. Can you find the worth of the question mark ?

40

40 it is. Nice.

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Transport Spreadsheets

Each symbol has a value. Can you find the worth of the question mark ?

21

Well done Eoink, 21 it is … assuming that’s your answer to the last Transport Spreadsheet with the “walker” :sunglasses:

When I first saw your answer, I thought it was for the number of rectangles. And I was somewhat disappointed !

Hi Don, it was indeed for the walker. I am very non-visual, so I find the rectangle-type questions pretty near impossible.
Thanks for putting up these teasers, they are great fun.
Eoin

Thank you Eoink.

For the rectangles, I had to re-draw the picture without the diagonals (which are simply a very effective distraction !) I also had to make two or three copies of the picture so that I could shade in the various combinations of rectangle.