A caveman wants to balance the two sets of stones shown in the picture. Which extra stone should he put on the right-hand side to make both sides equally heavy?
A toy kangaroo is on one square of a board, as shown. A child moves it to neighbouring squares in this order: right, up, left, down, then right. Which picture shows its final position?
Simon got up one hour and a half ago. In three hours and a half, he will take the train to grandmother's. How long before the train departure did he get up?
Lenka paid 1 euro and 50 cents for three scoops of ice-cream. Miso paid 2 euros and 40 cents for two cakes. How much did Igor pay for one scoop of ice-cream and one cake?
A tower clock strikes on the hour (8:00, 9:00, 10:00 and so on) as many times as the hour. It also strikes once at half past each hour (8:30, 9:30, 10:30 and so on). How many times did it strike from 7:55 to 10:45?
In a school class all pupils have at least one pet and at most two pets. They recorded all their pets in the picture. Two pupils have both a dog and a fish. Three pupils have both a cat and a dog. How many pupils are there in this class?
Ann, Bob, Cleo, Dido, Eef and Fer each roll a die and get different numbers. Ann's number is twice Bob's and three times Cleo's. Dido's number is four times Eef's. What number did Fer roll?
In a quiz show each participant starts with 10 points and answers 10 questions. A correct answer adds 1 point; an incorrect answer takes away 1 point. Mrs Smith finishes with 14 points. How many incorrect answers did she give?
The picture shows a magic maze. At each square there is a piece of cheese. Mouse Ron enters and wants to leave with as many pieces as possible. He cannot step on any square twice. What is the largest number of pieces he can get?
At a party each of two identical cakes was divided into four equal parts, then each part into three equal slices. Each person got one slice and three slices were left. How many people were at the party?
Four girlfriends Masha, Sasha, Dasha and Pasha sit on a bench. First Masha exchanges places with Dasha. Then Dasha exchanges places with Pasha. Finally the order from left to right is Masha, Sasha, Dasha, Pasha, as pictured. What was their initial order?
The picture shows four identical dice. On each die the total number of pips on each pair of opposite faces is 7. What does the arrangement look like from behind?
You have the three cards shown. You can form different numbers with them, for example 989 or 986. Altogether, how many different 3-digit numbers can you form with these three cards?