81 x 9 = 801. What must you do to make the this equation true?
If 1+9+8=1, what is 2+8+9?
When my father was 31 I was 8. Now he is twice as old as me. How old am I?
Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.
Can you write down eight eights so that they add up to one thousand?
There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?
If a wheel has 54 spokes, how many spaces are there between the spokes?
What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?
How many pluses should we put between the digits of 987654321 to get a total of 99, and where?
Look at this sequence from top to bottom. What is the next number in the sequence? 1 11 21 1211 111221 312211
The word ladder puzzle was invented by Lewis Carroll, author of Alice’s Adventures in Wonderland.
