 |
Where Did the Dollar Go ?
Three friends have a nice meal together, and the...
Try Puzzle »
|
 |
Make the Number 100
Using the numerals 1,7,7,7 and 7 (a "1" and four...
Try Puzzle »
|
 |
5-digit Number
What 5-digit number has the following features:...
Try Puzzle »
|
 |
Birthday
When asked about his birthday, a man said:
"The...
Try Puzzle »
|
 |
Two Consecutive Numbers
A Teacher thinks of two consecutive numbers in the...
Try Puzzle »
|
 |
Tricky Equation
The following equation is wrong: 101 - 102 =...
Try Puzzle »
|
 |
Fraction
Can you arrange the numerals 1 to 9 (1, 2, 3, 4, 5...
Try Puzzle »
|
 |
Choose the Right Symbol
What mathematical symbol can be put between 5 and...
Try Puzzle »
|
 |
24 from 8,8,3,3
How can I get the answer 24 by only using the...
Try Puzzle »
|
 |
Four Fours
A popular mathematical passtime:
Use exactly...
Try Puzzle »
|
 |
Four-Digit Whole Number
There is one four-digit whole number n, such that...
Try Puzzle »
|
 |
Where Did the Dollar Come From ?
Two friends have a nice meal together, and the...
Try Puzzle »
|
 |
Sum Of Digits is 43
I am thinking of a 6-digit number. The sum of the...
Try Puzzle »
|
 |
One and a Half Hens
If one and a half hens lay one and a half eggs in...
Try Puzzle »
|