25/03/2013 - When? 2 (**)

This puzzle is rated 2 star (medium).

Description

Nine days ago, the day before yesterday was three weeks before a party.

Puzzle
If it is Sunday, what day of the week is the party on?

Check the solutions page for the correct answer.

21/03/2012 - Countdown (**)

This puzzle is rated 2 star (medium).

Description
Here in the UK there is a TV programme called "Countdown".  Countdown is primarily about creating words from randomly chosen letters, but there is a couple of rounds based around numeracy.  Basically the contestant picks a random set of numbers and using only the numbers a maximum of 1 time and the operations add, subtract, multiply and divide he has to make a total.

Sometimes these are hard to get...

Puzzle
Using the rules of Countdown outlined above to make 446 using the numbers 100, 6, 2, 8, 9 and 5.

Check the solutions page for the correct answer.

20/03/2013 - Dominoes 2 (**)

This puzzle is rated 2 star (medium).

Description

Use above and imagine (or use) 4 dominoes labelled 6:6, 6:2, 2:5, 3:1, 1:5, 4:6, 5:6, 3:3 and 2:1.

Puzzle
Place the dominoes 6:6, 6:2, 2:5, 3:1, 1:5, 4:6, 5:6, 3:3 and 2:1, so that the correct numbers are covered by the dominoes.

Check the solutions page for the correct answer.

19/03/2013 - Alphamaths (**)

This puzzle is rated 2 star (medium).

Description

 

Decription

1. A is one-third of C and one-quarter of G
2. G is ten lower than H
3. H is double the value of F, but four lower than B
4. B is six higher than D
5. D is double the value of E
6. the value of E is lower than G

Puzzle
From the following six clues, find the values of the letters A to H. Each letter contains a different whole number in the range 1-30.

Check the solutions page for the correct answer.

18/03/2013 - Strawberry Picking (*)

This puzzle is rated 1 star (easy).

Description

A gardener planted a row of 10 strawberry plants in his garden, setting them exactly 1 m apart.

Each plant produced just one strawberry.

When picking time came, the stupid gardener placed a basket 1 m from the end of the row, and then proceeded to pick and carry each strawberry to the basket one by one.

Puzzle
How far did the gardener have to walk when picking his strawberries?

Check the solutions page for the correct solution.

17/03/2013 - Four Times Table (*)

This puzzle is rated 1 star (easy).

Description

For this puzzle you need to know your 4 times table.

The sequence is 4 + 8 + 12 + 16, etc (adding multiples of 4).  Giving totals of 4, 12, 24, 40, etc.

Puzzle
What is the first number past 200 that you reach?

Check the solutions page for the correct answer.

16/03/2013 - Sponsored Walk (**)

This puzzle is rated 2 star (medium).

Description

Harry recently went on a Sponsored Walk to raise funds for new equipment at the local Hospital.  His sponsor form looked like this:

Sponsor's Name	Amount Per km	Total
Fat Freda	10p
Dim Jim	15p
Tall Tanya		£3
Silly Cilla	5p
C.U.Jimmy	5p
Albert Bodge		£2.50
Roland Heap	20p
Nice Nigel		£4.50
Merlin Shriek	20p
Carol Singer	25p

Altogether Harry collected £22.00 from his sponsors. 

Puzzle
How far did he walk?

Check the solutions page for the correct answer.

15/03/2013 - Alpha-numbers (*)

This puzzle is rated 2 star (easy).

Description

Write out the numbers 1 to 20 (inclusive) in order, as words.

Puzzle
When placing these numbers in alphabetical order, how many numbers remain in their original position?

Check the solutions page for the correct answer.

13/03/2013 - Old News (***)

This puzzle is rated 3 star (hard)

Description

A newspaper is printed on 8 large sheets of paper that are laid on top of each other and folded in half. 

This means that the newspaper has 32 pages altogether.
The first sheet contains pages 1, 2, 31 and 32.

Puzzle
I pick up a sheet containing page 25. What are the other pages that this sheet contains?

Check the solutions page for the correct answer.

12/03/2013 - How Many Triangles 3 (**)

This puzzle is rated 2 star (medium).

Description

Make sure you can clearly see the image shown above.

Puzzle
How many triangles are there in the shape shown above?

Check the solutions page for the correct answer.

07/03/2013 - True Number (**)

This puzzle is rated 2 star (medium).

Description

I am thinking of a 6-digit number. The sum of the digits is 43. 

And only two of the following three statements about the number are true: 

1. It's a square number,
2. It's a cube number, and
3. The number is under 500000.

Puzzle
What is the number?

Check the solutions page for the correct answer.

06/03/2013 - Four 4s (10-19) (**)

This puzzle is rated 2 star (medium).

Description

During this puzzle you can only use the following mathematical functions:

• Addition
• Subtraction
• Multiplication
• Division
• Decimal point
• Square-root
• Brackets
• Power (e.g. 4 to the power 4 is 4 x 4 x 4 x 4 = 256)
• The number of 4 exactlyf 4 times.
  

Puzzle
Using only the mathematical functions and the number 4 (EXACTLY 4 times) construct the numbers from 10 to 19.

Check the solutions page for the correct answer.

05/03/2013 - Adding It Wrong! (**)

This puzzle is rated 2 star (medium).

Description

This is an additional table that seems to follow a different pattern.

Puzzle
Work out the missing number.

Check the solutions page for the correct answer.

04/03/2013 - How Much? (**)

This puzzle is rated 2 star (medium).

Description

Brian was about to pay £12 for a number of cakes, but then the baker decided two throw two extra ones in for free, because they were so little.

By adding the two extra cakes the cakes now cost one pound a dozen less than when Brian was about to pay.

Puzzle 
Tell now how many eggs she received for her twelve cents?

Check the solutions page for the correct answer.

03/03/2013 - Weighing the Baby (***)

This puzzle is rated 3 star (hard).

Description

A the mother weighs 100 pounds more than the combined weight of the baby and the dog, and the dog weighs 60 percent less than the baby?

Puzzle
How much does the baby weigh?

Check the solutions page for the correct answer.

02/03/2013 - Missing Numbers 2 (**)

This puzzle is rated 2 star (medium).

Description

This is just a straight algebra questions, but there is an easier way to work it out.

X72 + 3Y8 = 47Z


Puzzle
Work out X, Y and Z.

Check the solutions page for the correct answer.

01/03/2013 - What Symbol? (*)

This puzzle is rated 1 star (easy).

Description

Write out the numbers seven and eight, with a space between them.

Puzzle
What mathematical symbol can you put between the seven and the eight, to get a number bigger than seven but smaller than eight?

Check the solutions page for the correct answer.