Number Puzzles

Find a 10-digit number where the first digit is how many zeros in the number, the second digit... Try Puzzle ⇒

Use the numerals 1, 9, 9 and 6 exactly in that order to make the following numbers: 28, 32,... Try Puzzle ⇒

How can I get the answer 24 by only using the numbers 8, 8, 3 and 3. You can use add, subtract,... Try Puzzle ⇒

What 5-digit number has the following features: If we place an extra numeral 1 at the beginning,... Try Puzzle ⇒

What 9-digit number has the following features: It has all 9 digits from 1 to 9 It can be exactly... Try Puzzle ⇒

What is unique about 8549176320 ? Try Puzzle ⇒

I have ten boxes, with a total weight of 75kg: 15 kg, 13 kg, 11 kg, 10 kg, 9 kg, 8 kg, 4 kg,... Try Puzzle ⇒

Last month I sent off for one of those kits which you can use to make your own Christmas Crackers.... Try Puzzle ⇒

Find a number with its letters in alphabetical order. Example: five has fiv in alphabetical... Try Puzzle ⇒

In Girlia a family is not considered complete until a girl is born. So every family continues... Try Puzzle ⇒

When asked about his birthday, a man said: The day before yesterday I was only 25 and next... Try Puzzle ⇒

Find the code! bull; It has 6 different digits bull; Even and odd digits alternate (note: zero... Try Puzzle ⇒

Tim saw that his oven digital clock was showing 1:23, and noticed that each number was one... Try Puzzle ⇒

Use 8 exactly eight times to make 1000 a) Using only + minus; x / b) Also allowing radic;,... Try Puzzle ⇒

I am thinking of one of these five cards. You have to try to find out which one I am thinking... Try Puzzle ⇒

A popular mathematical pastime: Use exactly four 4's to form every integer from 0 to 50, using... Try Puzzle ⇒

There is one four-digit whole number n, such that the last four digits of n2 are in fact the... Try Puzzle ⇒

Can you arrange the numerals 1 to 9 (1, 2, 3, 4, 5, 6, 7, 8 and 9) in a single fraction that... Try Puzzle ⇒

Tom asked his Granny how old she was. Rather than giving him a straight answer, she replied:... Try Puzzle ⇒

Horace bought some cakes today As explained in this song. Now, as he took his change away He... Try Puzzle ⇒

This is a Magic Square. This means that the numbers add up to the same total in every direction.... Try Puzzle ⇒

Try Dubi Kaufmann's Magic Square Game Try Puzzle ⇒

Using the numerals 1,7,7,7 and 7 (a 1 and four 7s) create the number 100. As well as the five... Try Puzzle ⇒

Hungry Horace went into the Music Shop to buy some musical sweets which they were selling.... Try Puzzle ⇒

One afternoon, Hungry Horace made a large number of mince pies for his Christmas party the... Try Puzzle ⇒

What is the missing number in Triangle Four? Try Puzzle ⇒

What is the missing number? Try Puzzle ⇒

You have a calculator with a keyboard which consists of 10 digits and two symbols, and , as... Try Puzzle ⇒

A man who had lived at the highest-numbered address on his street moved to another house on... Try Puzzle ⇒

Guy goes into a store and buys 4 things. The cashier tells him his bill comes to 7.11. Wait... Try Puzzle ⇒

Here's a newspaper made of 8 large sheets of paper folded in half. The newspaper has 32 pages... Try Puzzle ⇒

There are infinitely many formulas that will fit any finite series. Try to guess the next number... Try Puzzle ⇒

If one and a half hens lay one and a half eggs in one and a half days, how many eggs does one... Try Puzzle ⇒

Ludwig Bump runs the bank in Mathsville. . You have to help him, though, because he has forgotten... Try Puzzle ⇒

Single digits are the average of themselves. Example: the average of 7 is 7. Can you find a... Try Puzzle ⇒

At a school fete people were asked to guess how many peas were in a jar. No one guessed correctly,... Try Puzzle ⇒

25 people enter the picnic race. But the track is narrow and only 5 can race at a time. No... Try Puzzle ⇒

Two of the four jigsaw tiles have the same sum of their roots. Find these tiles. Author: Peter... Try Puzzle ⇒

Hungry Horace was copying down his Mathematics Homework the other day, but because he was in... Try Puzzle ⇒

How many squares are there on a chess board ... ? (Think carefully now) Try Puzzle ⇒

A 5-digit number has the sum of all five digits equal to 5. The first digit is equal to the... Try Puzzle ⇒

I am thinking of a 6-digit number. The sum of the digits is 43. And only two of the following... Try Puzzle ⇒

This puzzle is made of numbers (like 1 and 8) and functions (like +4 and x8). Can you fill... Try Puzzle ⇒

A pearl necklace has 33 pearls with the largest and most valuable in the middle. Starting from... Try Puzzle ⇒

Welcome to the strange mind of Eureka Blip. He does not always think the same way as we do,... Try Puzzle ⇒

There were 100 chocolates in a box. The box was passed down along a row of people. The first... Try Puzzle ⇒

Age problems were quite the fashion in antiquity. Here is an example: I have twice the age... Try Puzzle ⇒

A Teacher thinks of two consecutive (one after the other) numbers in the range 1 to 10, and... Try Puzzle ⇒

Write down the next line in the following pattern: Try Puzzle ⇒

A teacher says: I am thinking of two natural numbers bigger than 1. Try to guess what they... Try Puzzle ⇒

Two friends have a nice meal together, and the bill is 25 The friends pay 15 each, which the... Try Puzzle ⇒

Three friends have a nice meal together, and the bill is 25 The three friends pay 10 each,... Try Puzzle ⇒