Five digits numbers

Place the plates inside of a square in order to obtain numbers formed by five digits. In the case of a right solution the same five numbers can be read also on the horizontal as on the vertical. How does the final square looks like?

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The question mark

Each square has a certain value. The sum of these values is indicated in the right of every line or under each column.  What number needs to be put instead question mark?

Find nine numbers which sum equals 38.

Go from a square to another, vertically or horizontally. Start with the bottom left square and end with the top right one. Respecting these two rules, find nine numbers which sum equals 38. How many choices are there?

What numbers needs to be put into the diagram?

Place six numbers formed by three digits bigger than 100 after number 432, in order to obtain six numbers of six digits. When this numbers are divided to 151 you obtain six integer numbers. What numbers needs to be put into the diagram?

The planets

Two planets are in the same line with the sun. The exterior planet will realise a rotation around the sun at every twelve years, and the interior planet at every three years. Both planets moves clock wise. In what period the planets and the sunt will be again into the same line?

Darts numbers

Fill in the grill so that the sum of the three numbers in every sector of the circle to be the same. In the case of a true answer the sum of the eight numbers from every three concentric circles to will the same.

Five Digits

Put the plates inside of a square in order to obtain numbers formed by five digits. In the case of a right solution the same five numbers can be read also on the horizontal as on the vertical. How does the final square looks like?

What number needs to be put instead question mark?

Each square has a certain value. The sum of these values is indicated in the right of every line or under each column.  What number needs to be put instead question mark?

Crazy squares

Go from a square to another, vertically or horizontally. Start with the bottom left square and end with the top right one. Respecting these two rules, find nine numbers which sum equals 66. How many choices are there?

What numbers needs to be put into the diagram?

Place six numbers formed by three digits bigger than 100 after number 457, in order to obtain six numbers of six digits. When this numbers are divided to 55.5 you obtain six integer numbers. What numbers needs to be put into the diagram?