In the picture below, you see a map. In the middle, a piece is missing. The cat should be able to reach the milk, and the mouse should be able to reach the cheese, but the cat and the mouse must not meet each other. What should the piece in the middle look like?
In a cafe, the soup costs €4, the main course costs €9 and the dessert costs €5. The three courses when ordered together cost €15. How many euros cheaper is this, than ordering the same three courses separately?
Four friends each eat some ice cream. Mike eats more than Franz, Jaroslav eats more than Veit and Jaroslav eats less than Franz. Put the friends in order according to how much ice cream they have eaten, starting with the largest amount.
Eva is a centipede with exactly 100 feet. Yesterday, she bought 16 pairs of shoes and wore them straight away. Even so she still had 14 feet with no shoes. On how many feet did she already wear shoes before going shopping yesterday?
Maria folds the square piece of paper shown below in such a way that the kangaroos exactly overlap each other. Along how many of the lines shown should she fold the paper?
Matthias and Klara live in a tower block. Klara lives 12 floors above Matthias. One day, Matthias climbs the staircase to visit Klara. When he is halfway up, he is on the 8th floor. On which floor does Klara live?
A large cube is made of 64 small cubes. The 5 visible faces of the large cube are green, the bottom face is red. How many of the small cubes have 3 green faces?
A ferry boat can transport, in one trip, either 10 cars or 6 lorries. Yesterday the boat crossed the river 5 times. It was always fully loaded and transported a total of 42 vehicles. How many of these were cars?
Hans began a chain-email. He sent an email to his friend Peter, who sent it on to 2 more people. Each person that receives the email should send it to 2 more people. After 3 rounds, $1+2+4=7$ people have received the email. How many people have received the email after 5 rounds?
On a playground, some children measure the length of the playground with their strides. Anni makes 15 strides, Betty 17, Denis 12 and Ivo 14. Who has the longest stride?
Every cell of a $4\times4$ table contains a playing card (their suits are shown in the picture). One lead allows switching the positions of any two cards. At least, how many leads will be played so that each row and each column will contain all suits?
Kamilla wrote down all of the numbers from 1 to 100 one after another in a table with 5 columns. A part of the table is shown. Her brother cut out a piece of the table and erased some of the numbers. Which of the following could be this piece?
