How many different ways are there for Eton to go to the library if he can only take the routes indicated by the arrows ?

There are two clocks in Cathy’s room. One of them is 25 minutes behind. Now it is showing 7:40. The second clock is 15 minutes ahead. What is the second clock showing now ?

In four of the five pictures, the white area is equal to the grey area. In which picture are the white area and the grey area different ?

Father hangs the laundry outside on a clothesline. He wants to use as few pegs as possible. For three towels he needs four pegs, as shown. How many pegs does he need for eleven towels ?

A math class lasts 45 minutes. Peter can solve any problem from the textbook in exactly 6 minutes. However, he needs one minutes rest after solving each problem. How many problems can Peter solve completely during one math class ?

Fifteen children are playing hide and seek. One of them is the “seeker”. After a while seven children were still hiding. How many children have already been found ?

Mike and Jake were playing darts. Each one threw three darts ( see the picture ). Who won, and by how many points did he win ?

A regular rectangular pattern on a wall was created with two kinds of tiles: grey and striped. Some tiles have fallen off the wall ( see the picture ). How many grey tiles have fallen off ?

The year 2012 is a leap year, that means there are 29 days in February. On the 15^th of March 2012, the ducklings of my grandfather are 20 days old. When did they hatch from their eggs ?

You have L-shaped tiles, each consisting of four squares as shown:  How many of the following shapes can you make by glueing together two of the given tiles ?

Once Little Piggy planted 8 acorns. In a few years, oak trees grew from all acorns except two of them. All oak trees except two of them had their acorns. Acorns from all profilic trees except one, are very tasty. How many oaks with tasty acorns are there ?

In a Sudoku the numbers 1, 2, 3, 4 can occur only once in each column and once in each row. In the mathematical sudoku on the picture, Patrick first writes in the results of the calculations. Then he completes the sudoku. Which number will Patrick put in the grey cell ?

Grandmother made 20 gingerbread biscuits for her grandchildren. She decorated 15 biscuits with raisins and then 15 biscuits with nuts. At least how many biscuits were decorated both with raisins and nuts ?

Among Nikolay’s classmates there are twice as many girls as there are boys. Which of the following numbers may be equal to the number of all children in this class ?

In the animal’s school, three kittens, four ducklings, two goslings and several lambs are talking lessons. The teacher owl found out that all of her pupils have 44 legs altogether. How many lambs are among them ?