Brainteaser 1: Pizza box

Cheese

1.

Open-face cheese sandwich.

2.

The two holes in the centre create a “division sign”. Count the holes in the cheese.

3.

The first number is six, the second number is three.

Solution

6 : 3 = 2. solution: 2

Tomatoes

1.

One tomato vine has strange spots.

2.

Two tomatoes are always next to each other. What do the spots on the left tomato have to do with the spots on the right tomato?

3.

Calculate using the number 3. Add 3, subtract 3, multiply by 3…

Solution

Three spots plus three spots equals six spots; three minus three equals zero; three times three equals nine; three divided by three equals one. Solution: 1

Basil

1.

The Latin word for basil is hidden in the flower pot. Can you find it again somewhere else in the image?

2.

The Latin word for basil is Ocimum. This word can be found in the notebook on the table. Which values have been assigned to the letters? (for example A=1, B=2…)

3.

The coloured dots underneath show which maths symbols need to be used.

4.

Decipher which maths symbols have been assigned to the coloured dots using the raised bed on the right side of the puzzle.

Solution

A red dot means add; a pink dot means subtract. O(15) + C(3) + I(9) – M(13) – U(21) + M(13) = 6. Solution: 6

Final answer for the entire first brainteaser

Solution

216

Brainteaser 2: Picture with watering can and flower

Stakes

1.

Can you find all nine stakes in the picture?

2.

The two numbers have to be calculated with each other.

3.

The colour of the stake determines the corresponding maths symbol.

4.

Decipher which maths symbols have been assigned to the coloured dots using the raised bed on the right side of the puzzle.

5.

The final answers are between 1 and 9. Which number is missing?

Solution

Pink stake (33) 3-3=0; blue stake (33) 3:3=1; pink stake (75) 7-5=2; blue stake (62) 6:2=3; pink stake (62) 6-2=4; red stake (33) 3+3=6; yellow stake (71) 7×1=7; red stake (62) 6+2=8; yellow stake (33) 3×3=9. Solution five is missing. Solution: 5

Orchids

1.

There are orchids with letter tags in the upper portion of the puzzle. Can you find these letters again somewhere else in the image?

2.

Tags are scattered on the floor that show the numerical values for the letters! D=3, F=4 H=2 The same letters stand for the same numbers.

3.

The tags provide a logical sequence of numbers. Can you figure out the series of numbers that is going backwards?

4.

Another number tip: E=5.

5.

That allows you to decipher two tags: FH=42, DE=35. How great is the difference between the two numbers?

6.

The difference between the two numbers is 7. Can you continue the sequence of numbers?

7.

The seven times table starts on the first tag with the number 70=AB. Now calculate backwards. What number results for the “?”?

Solution

A=7; B=0; C=6; D=3; E=5; F=4; G=9 H=2; I=8; J=1 Solution: 7

Watering can

1.

Take a close look at the holes in the watering can. Can you detect a pattern?

2.

Opposing holes belong together.

3.

Multiply by the number of holes in the middle (2).

Solution

Each number times the middle number (2) provides the solution. 1×2=2; 2×2=4; 3×2=6. Solution: 6

Final answer for the entire second brainteaser

Solution

576

Brainteaser 3: Blackboard

Stool

1.

The same letters stand for the same numbers.

2.

The numbers on the edge provide the solution for each column/row

3.

Two spaces have an X, keep in mind that “X-X”. What final answer results?

Solution

A=8; B=8; C=5; D=7; A+D+B+A=31 and B+B+C+C=26, which means the solution is 31-26=5. Solution: 5

Books

1.

Take a close look at the names of the books.

2.

Are there two of every letter?

3.

One letter comes up just once. What numerical value does that letter have?

Solution

Every letter except F comes up multiple times. Numerical value for the letter F=6. Solution = 6

Cacti

1.

Note the number of “barrels” or “paddles” of each individual cactus.

2.

Maths symbols can be found on the pots.

3.

Keep in mind: multiply and divide first, then add and subtract.

Solution

5 x 8 – 5 x 7 + 4 x 1 = 9. Solution = 9

Final answer for the entire third brainteaser

Solution

569

Brainteaser 4: Stake with spider

Spider

1.

Some of the strands in the spider web are much thicker.

2.

Do you see a number?

3.

Push the thicker strands together.

Solution

When pushed together, the thicker strands in the web form a four. Solution: 4.

Pot

1.

A broken pot can be found on the floor that shows a sequence of numbers. Can you find a logical sequence?

2.

The sequence is 3 2 4 3 2 4

Solution

The number to the left of three is missing. Solution: 4

Beans

1.

Take a close look at the beans. Could it be that some look a bit different?

2.

Some beans look like numbers or maths symbols. Can you find them all?

Solution

Greenish yellow beans produce the calculation: 3 + 2 x 2. Solution: 7

Final answer for the entire fourth brainteaser

Solution

447

Brainteaser 5: Vampire picture

Hand tools on the wall

1.

Could it be that a red hand tool is missing?

2.

Add up the prongs of the three red hand tools.

Solution

Three hand tools with a specific number of prongs: 3, 2, 4. Result: 3+2+4=9 Solution: 9

Garlic

1.

How many bulbs of garlic can you find?

2.

How many cloves does a bulb have?

3.

Take a closer look at the note on the table.

Solution

There are eight cloves are on the ground. Total of nine bulbs. Note on the table shows an equation (bulbs minus cloves) 9-8=1. Solution: 1

Egg (hen)

1.

Oh, no! There is a broken egg on the ground.

2.

Could it be that a number is hidden in the egg?

Solution

Broken egg shows the number 8. Solution: 8

Final answer for the entire fifth brainteaser

Solution

918

Brainteaser 6: Picture with hand

Mice

1.

Can you find the three mice?

2.

Another mouse clue can be found on the table.

3.

In which direction are the mice looking? Could it have something to do with the mouse alarm clock?

4.

The mice are looking at a specific time.

5.

Coloured dots stand for maths symbols 1. The mice are looking in specific directions 2. The mice are looking at a specific time 3. Coloured dots stand for maths symbols. Decipher which maths symbols have been assigned to the coloured dots using the raised bed on the right side of the puzzle.

Solution

Left mouse (pink dot) is looking at 2:00 o’clock, middle mouse (orange dot) is looking at 10:00 o’clock, right mouse (pink dot) is looking at 3:00 o’clock. -2+10-3=5. Solution: 5

Soil (bag of soil)

1.

The same flower stands for the same number.

2.

What numerical value does the blue flower have?

3.

Tip: red flower=3

Solution

Pink flower = 4; white flower = 5; red flower = 3; blue flower =7. Solution: 7

Glove

1.

Symbols can be found on the glove.

2.

Count up the angles.

Solution

Triangle (3) plus square (4) plus circle (0) = 7. Solution: 7

Final answer for the entire sixth brainteaser

Solution

577