brain teasers

• 10

• 9

• 7

• 6

• 2

• 4

• 6

• 8

What is the following number? 18, 21, 24, 27, 30, 33, 36, ______________

• 38

• 40

• 37

• 39

What weighs more – A kilo of apples or a kilo of feathers?

• a kilo of apples

• a kilo of feathers

• both same

• 20

• 30

• 40

• 50

which figure have exactly two lines of symmetry

• 
• 
• 
• 

• 
• 
• 
• 

• 9

• 27

• 3

• 30

How many blocks?

• 7

• 8

• 9

• 19

Greatest 3-digit number with all different digits?

• 999

• 909

• 987

• 978