Question 1

What's the missing number?

Accepted Answer

45 - 15+45=60, 25+35=60, 50+10=60, 30+30=60

Question 2

What's the missing number?

Accepted Answer

14 - 2+3=5+4=9+5=14+6=20

Question 3

What's the missing number?

Accepted Answer

168 - Circles make the next number double, Squares make the next number triple

Question 4

What's the missing number?

Accepted Answer

10 - Double the number, then increase it by 2.

Question 5

What's the missing number?

Accepted Answer

1800 - Multiplicate by 15 then multiplicate by 2

Question 6

What's the missing number?

Accepted Answer

54 - Multiplicate by 6 the number in the circle

Question 7

What's the missing number?

Accepted Answer

15 - 5×3=15

Question 8

What's the missing number?

Accepted Answer

5 - Adds 4 clockwise

Question 9

What's the missing number?

Accepted Answer

12 - 4+7=11+1=12+1=13

Question 10

What's the missing number?

Accepted Answer

15 - 6+9=15

Question 11

What's the missing number?

Accepted Answer

32 - Every time you go down, the number is increasing by 11

Question 12

What's the missing number?

Accepted Answer

20 - 20-5=15

Question 13

What's the missing number?

Accepted Answer

104 - 52×2=104

13 Missing number puzzles

2) What's the missing number?