Math Brain teasers

Question 1

Solve the following.

Accepted Answer

1

Question 2

Sandy is 5 years older than her brother. If the sum of their ages is 31, how old is Sandy?

Accepted Answer

18

Question 3

What is the 6th number in the sequence 17, 18, 21, 26, ...

Accepted Answer

42

Question 4

Which number replaces the ?

Accepted Answer

13

Question 5

The smallest prime number is

Accepted Answer

2

Question 6

Which 3 numbers have the same answer whether they’re added or multiplied together?

Accepted Answer

1,2,3

Question 7

Which number replaces the ?

Accepted Answer

3

Question 8

What weighs more: a kilogram of iron or a kilogram of feathers?

Accepted Answer

weigh the same

Question 9

If tomorrow is Wednesday, what is the day before today?

Accepted Answer

Monday

Question 10

Evaluate.

Accepted Answer

4100

Question 11

How many days are in a leap year?

Accepted Answer

366

Question 12

What is the number of the parking space containing the car?

Accepted Answer

87

Question 13

A book has 150 pages. Every page is numbered. How many digits are used?

Accepted Answer

342

Question 14

Evaluate.

Accepted Answer

7

Question 15

How many school days are students required to go to school?

Accepted Answer

175

Question 16

Consider the decimal 0.101001000100001…. Do you think this decimal represents a rational number?

Accepted Answer

no

Question 17

Determine the total number of balls that would make up the figure shown.

Accepted Answer

30

Question 18

A farmer had 17 sheep and all but nine died. How many are left?

Accepted Answer

9

Question 19

Answer This Question

Accepted Answer

8

Question 20

?

Accepted Answer

40

Question 21

If there are three apples and you take two away, how many do you have?

Accepted Answer

2

Question 22

When I was six yrs old my brother was half my age. I am now 20 yrs old. How old is my brother?

Accepted Answer

17

Question 23

Find the value of the "?" in the image shown.

Accepted Answer

-3

Question 24

Which number replaces ?

Accepted Answer

16

Question 25

Answer This Question

Accepted Answer

14

Question 26

Which number replaces ?

Accepted Answer

16

Question 27

How many triangles are shown in the picture below?

Accepted Answer

13

Question 28

What is the temperature according to this thermometer?

Accepted Answer

5

Question 29

You're running in a 500 m race and overcame the person in 2nd place. At what place are you in?

Accepted Answer

2nd

Question 30

Which number is bigger?

Accepted Answer

9.989

Question 31

Answer This Question

Accepted Answer

21

Question 32

What day is Halloween?

Accepted Answer

October 31st

Question 33

Solve the following.

Accepted Answer

15

Question 34

I am an odd number. Take away one letter and I become even. What number am I?

Accepted Answer

7

Math Brain teasers

Questions 34

Math Brain teasers

Questions 34