Get Free Riddles and Brain Teasers Every Month

The Odd One Out

Which is the odd one out and why?

A. Cassius
B. Cassia
C. Casca

B. Cassia is a tropical tree; Cassius and Casca were conspirators against Julius Caesar.

Posted in Brain Teasers

Which Are True and Which Are False?

A. When a car is driven forwards the wheels rotate counter-clockwise.
B. If a clock is put forward 1 1/4 hours the minute hand moves through 450°
C. When a clock reads 4.10 the acute angle between the hands is exactly 60°

A. False – The near-side wheels rotate counter-clockwise, but the far-side wheels rotate clockwise.
B. True
C. False – The acute angle is a little more than 60° because by the time the minute hand reaches 10, the hour hand will have moved slightly past the 4.

Posted in Brain Teasers

Plane Crash Off Coast of Mexico

A plane crashed off the coast of Mexico and every single person died, yet there were two survivors. How could that happen?

There was a married couple.

Posted in Brain Teasers

How to Escape?

A man is trapped in a room with only two possible exits. Through the first door is a room with an enormous magnifying glass causing the blazing hot sun to instantly burn anything that enters. Through the second door there is a fire-breathing dragon. How does the man escape?

Leave through the first door at night when the sun is down.

Posted in Brain Teasers

Twice As Many Women As Children

At a party of thirty-five people there are twice as many women as children and twice as many children as men. How many of each are there?

20 women, 10 children and 5 men.

To figure it out, let m be the number of men and you get this equation:

4m + 2m + m = 35
7m = 35
m = 35 ÷ 7
m = 5

Posted in Brain Teasers

What Number Comes Next 6 1 3 1 4

What number comes next?

6 1 3 1 4 _

5. The numbers are the alphabetical positions of the letters in the word FACADE.

F – 6th
A – 1st
C – 3rd
A – still 1st
D – 4th
E – 5th

Posted in Brain Teasers

Two Eights and Two Threes to Make Twenty Four

Using one or more addition, subtraction, multiplication or division operations, what formula using the numbers 3, 3, 8 and 8 equals 24?

8 ÷ (3 – (8 ÷ 3)) = 24

Posted in Brain Teasers

Progressive Countdown

If you’re given a number, subtract 1, then 2 from the result, then 3 from that result and so on until you reach 0 or a negative number.

For example, if you’re given 15:

15 – 1 = 14
14 – 2 = 12
12 – 3 = 9
9 – 4 = 5
5 – 5 = 0

Which of these numbers will finish exactly at zero?

102 103 104 105 106

105

105 – 1 = 104
104 – 2 = 102
102 – 3 = 99
99 – 4 = 95
95 – 5 = 90
90 – 6 = 84
84 – 7 = 77
77 – 8 = 69
69 – 9 = 60
60 – 10 = 50
50 – 11 = 39
39 – 12 = 27
27 – 13 = 14
14 – 14 = 0

Posted in Brain Teasers

Make This Addition Problem Correct

This math problem is currently wrong.

11 + 66 + 88 + 96 = 294

How can you make it actually equal 294?

Flip the numbers upside down:

11 + 99 + 88 + 96 = 294

Posted in Brain Teasers

Choose Your Own Death

A prisoner was brought before the King to be executed. The King was in a peppy mood and asked the prisoner how he would like to die. The prisoner told him and the King laughed heartily. The prisoner was released and sent on his way, alive.

What did the prisoner say?

He asked to die of old age.

Posted in Brain Teasers