09/02/2013 - Trains (**)

This puzzle is rated 2 star (medium).

Description

The red engine is behind the yellow engine.
The yellow engine is behind the green engine.
The blue engine is between the purple engine and the red engine.
The orange engine is last.

Puzzle
Put the engines in order.

Check the solutions page for the correct answer.

08/02/2013 - Dominoes 1 (*)

This puzzle is rated 1 star (easy).

Description

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

Puzzle
Place the dominoes 3:4, 5:3, 4:2 and 3:2 onto the grid above, so that each side has numbers summing to 10.

Check the solutions page for the correct answer.

07/02/2013 - A Dozen Apples (***)

This puzzle is rated 3 star (hard).

Description

It was the day before Christmas, and a shopkeeper was feeling rather generous, so he said to his assistant:

“Today you may sell these apples for a pound a dozen less than they were. That will mean that customers will get one more apple for a pound.”

Puzzle

What were the old and new prices for a dozen apples?

Check the solutions page for the correct answer.

06/02/2013 - How Many Triangles 1 (**)

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.

05/02/2013 - From A to B (***)

This puzzle is rated 3 star (hard).

Description

A bike travels downhill at 20 mph (miles per hour), on the level (flat road) at  15 mph, and uphill at only 12 mph. The bike takes 4 hours to travel from town A to town B. The return trip takes 4 hours and 40 minutes. 

Puzzle
Find the distance between the two towns.

Check the solutions page for the correct answer.