The perimeter of the rectanggle ABCD is 30 cm. Lisa cut off three rectangles as shown

She found that the sum of the three perimeters is equal to 20 cm. What is the perimeter of the figure obtained after the cutting ?

Five children had each a paper square, a paper triangle and a paper circle. Every child put their own papers in a pile, as shown in the pictures. How many children put the triangle after the square ?

The mouse wants to escape from the maze.

How many different paths can the mouse take without passing through the same opening more than once ?

Zoe has two cards with numbers on both sides of the cards – four numbers in total. The sum of the four numbers equals 32; the sum of the two numbers on the first card is equal to the sum of the two numbers on the second card. What are the hidden numbers ?

A farmer has the same number of chickens, sheep and goats. Together all these animals have 180 legs. How many goats live on this farm ?

Linda has started to write some numbers in the table below. She decides that each row and each column will contain the numbers 1, 2 and 3 only once.

What is the sum of the numbers she writes in squares A and B ?

My dogs have 18 more legs than noses. How many dogs do I have ?

Rachel added seven numbers together and got a sum of 2016. She later found out she had made a mistake by using the number 201 instead of 102. What sum should she have gotten instead of 2016 ?

Helena turns the card  over about its left-hand edge and then about its top edge, as shown below.

What does Helena see ?

Tim, Tom and Jim are triplets ( three brothers born on the same day ). Their brother Paul is exactly 3 years older. Which of the following numbers could be the sum of the ages of the four brothers ? ( All ages are rounded to a whole year ).

A group of 31 students went camping taking nine tents. Each tent shelters either three of five students. If all students were covered by a tent, at least how many of the tents housed five students each ?

The picture below shows the roads between five connected towns. The numbers show the distances between the towns. It is 24 kilometres from Caramelshire to Nutyork. The distance between Vanillaton and Candister. Nutyork is closer to Candister than it is to Chocolateford. How far is it from Candister to Chocolateford ?

Magic trees grow in a magic garden. Each tree contains either 6 pears and 3 apples or 8 pears and 4 apples. There are 25 apples in the garden. How many pears are there in the garden ?

Malte has built a bar of 27 bricks

He breaks the bar into two bars such that one of them is twice the length of the other. Then he takes one of the new bars and breaks it the same way. He continues in this way. Which of the following bars will he not be able to get ?

John looks through the window. He sees half of the kangaroos in the park ( see the picture )

How many kangaroos are there in the park ?

Two 3x3 transparent sheets are darkened in some squares, as shown. They are both slid on top of the board shown in the middle.

Pictures behind the darkened squares canot be seen. Only one of the pictures can still be seen, which one is it ?

A picture of footprints shown on the left was rotated as shown on the right

Which footprints are missing in the picture on the right ?

What number is hidden behind the panda ?

Dolly accidentally broke the mirror into pieces. How many pieces have exactly four sides ?

In the figure, we see a necklace of six beads.

Which one is the same necklace ?

How many triangles ( of any size ) are there in the figure ?

In the table, correct sums are shown. Ink was spilled over some of the table. What is the result in the box with the question mark ?

The picture shows the front of Melanie’s house.

The rear of her house has three windows and no door. What view does Melanie see when she looks at the rear of her house ?

A five – digit number has four equal digits and the sum of the digits is 43. Which one is the different digit ?

Imagine that the circles represent the same number and the same is true for the squares. Which one is true ?