14/02/2013 - Valentines (**)

This puzzle is rated 2 star (medium).

Description

A nice little equation for St Valentine's Day.

Puzzle
Solve:
9x + 7i < 4x + 21u +5x

Check out the solutions page for the correct answer.

13/02/2013 - Wolves (*)

This puzzle is rated 1 star (easy).

Description

Six wolves kill six lambs in six minutes.

Puzzle
How many wolves does it take to kill sixty lambs in sixty minutes?

Check the solutions page for the correct answer.

12/02/2013 - Carriages (**)

This puzzle is rated 2 star (medium).

Description

Mr and Mrs Green, Mr and Mrs Brown and Mr and Mrs White sit in a railway carriage.

There are three seats on each side of the carriage, with a door on one side.

No man sits next to, or opposite, his wife.

No man sits next to another man.

Mr Green is neither next to, nor opposite, Mrs Brown.

Mr White is not by the door.

Puzzle
Where is each person sitting?

Check the solutions page for the correct

11/02/2013 - Number Circle (*)

This puzzle is rated 1 star (medium).

Description

Copy the diagram above.

Puzzle
Place the numbers 1, 2, 3, 4 and 5 in the circles so that no number is next to a number that is one more or one less than itself.

Check the solutions page for the correct answer.

10/02/2013 - Even Triangle (*)

This puzzle is rated 1 star (easy).

Description

Construct the triangle above.

Puzzle
Put the numbers 8, 9, 10, 11, 12 and 13 in to the triangle so that all of the sides are equal to each other.

Check the solutions page for the correct answer.