The two squares (1)

What code corresponds with the figure in the centre?

You can check your solutions here

Which number does not belong in the following series? (2)

Which one of the numbers does not belong in the following series?
3, 4, 8, 9, 10, 18, 19, 38

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Which item does not belong in the following series? (1)

Which one of the numbers does not belong in the following series?
E, D, I, H, J, O, N, U

This kind of questions is one of several types found in the Wechsler IQ test. Unfortunately, one of the questions as I found it online has two answers.

You can check your solutions here

Apologies for not publishing a puzzle last Friday.

How many?

If there is 1 in 1, if there are 2 in 2, 3 in 7 but 0 in 8, how many are there in eleven?

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Pattern codes – Diagonals

What is the code for the fifth figure?

This weeks puzzle is pretty easy, I admit. I hope next weeks puzzle will be more of a poser.

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What comes next?

What number comes next in the following sequence?

56789
51317
548
…

You can check your solution here

Pattern code – arrows

Here are some arrows, all different, and all labelled.

What should be the label of the arrow in the center?

You can check your solution here

Optician

At the optician, I saw several spectacles for sale. The prices of the frames, still without the glasses, showed a very clear pattern.

What is the price of the one labelled with the question marks?

Usually you can find a new braintease here usually on Friday. Solutions are generally provided one week later.

You can check your solution here

Pattern code square and circle

Four combinations of a square and a circle have been labelled with a three letter code. What code should the combination in the middle have?

You can check your solution here

colour grid (2)

Usually I construct my puzzles in such a way that the puzzles can be made and solved by those who are colour blind. That is alas not the case with this weeks brainteaser, for which I apologize.

The question is: what colour should go into the white square with the question mark?

You can check your solution at here