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Amazing Card Trick

How is it possible to predict the card?

Card Trick 2

Can you explain how this card trick works?

Cube Paths

Given a 2 by 2 by 2 skeletal cube with one route `down' the cube. How many routes are there from A to B?

Painting Cubes

Age 11 to 14 Challenge Level:

A large rose-tree stood near the entrance of the garden: the roses growing on it were white, but there were three gardeners at it, busily painting them red....
"Would you tell me please," said Alice, "why you are painting those roses?"
Five and Seven said nothing, but looked at Two. Two began in a low voice, "Why, the fact is, you see, Miss, this here ought to have been a red rose-tree, and we put a white one in by mistake; and, if the Queen was to find it out, we should all have our heads cut off, you know."


Imagine you have some wooden cubes. You also have six paint tins each containing a different colour of paint. You paint a cube using a different colour for each of the six faces.

How many different cubes can be painted using the same set of six colours?

Remember that two cubes are different only when it is not possible, by turning one, to make it correspond with the other.

Two playing cards