Math Riddles
If you multiply this number by any other number, the answer will always be the same. What number is this?
Zero
I am an odd number. Take away a letter and I become even. What number am I?
Seven
How can you drop a raw egg from a height onto a concrete floor without cracking it?
Concrete floors won't crack from having an egg dropped on them
What goes through cities and fields, but never moves?
A road
What is the longest word in the dictionary?
Smiles, because there is a mile between each ‘s’
When my dad was 31, I was just 8 years old. Now his age is twice as old as my age. What is my present age?
When you calculate the difference between the ages, you can see that it is 23 years. So you must be 23 years old now.
Forward, I am heavy; backward, I am not. What am I?
Ton
A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?
Nine years.
I can go through glass without breaking it. What am I?
Light
What has a bottom at the top?
Your legs
I add 5 to 9 and get 2. The answer is correct, so what am I?
A clock. When it is 9 a.m., adding 5 hours would make it 2 p.m.
What is 3/7 chicken, 2/3 cat, and 2/4 goat?
Chicago
Four cars come to a four-way stop, each coming from a different direction. They can’t decide who got there first, so they all go forward at the same time. All 4 cars go, but none crash into each other. How is this possible?
They all make right-hand turns
When it is alive we sing, when it is dead we clap our hands. What is it?
A candle
What do you buy to eat but never consume?
Cutlery
What does a man do only once in his lifetime, but women do once a year after they are 29?
Turn 30
Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue, and gray, I’m read from both ends, and the same either way. What am I?
An eye
Throw away the outside and cook the inside, then eat the outside and throw away the inside. What is it?
Corn on the xob
When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?
The horizon
A bus driver goes the wrong way down a one-way street. He passes the cops, but they don’t stop him. Why?
He was walking
What single digit appears most frequently between and including the numbers 1 and 1,000? Hint: Look for a pattern!
1
I’m orange, I wear a green hat and I sound like a parrot. What am I?
A parrot
There are two ducks in front of a duck, two ducks behind a duck and a duck in the middle. How many ducks are there?
Three. Two ducks are in front of the last duck; the first duck has two ducks behind; one duck is between the other two.
I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?
Popcorn
You’ll often find us on a line. When we’re together, it’s a crime. What are we?
Crows. A group of crows is called a “murder.”