1 out of 3
The challenge is to find the values of the variables if you are to solve this Sudoku.
1 out of 3
There is nothing half so much worth doing as simply messing about in boats...
3 out of 3
Given the nets of 4 cubes with the faces coloured in 4 colours, build a tower so that on each vertical wall no colour is repeated.
3 out of 3
Pentagram Pylons - can you elegantly recreate them? Or, the European flag in LOGO - what poses the greater problem?
3 out of 3
Explore this how this program produces the sequences it does. What are you controlling when you change the values of the variables?
3 out of 3
Remember that you want someone following behind you to see where you went. Can yo work out how these patterns were created and recreate them?
1 out of 3
Mr Smith and Mr Jones are two maths teachers. By asking questions, the answers to which may be right or wrong, Mr Jones is able to find the number of the house Mr Smith lives in... Or not!
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It is possible to identify a particular card out of a pack of 15 with the use of some mathematical reasoning. What is this reasoning and can it be applied to other numbers of cards?
1 out of 3
An ordinary die is placed on a horizontal table with the '1' face facing East... In which direction is the '1' face facing after this sequence of moves?
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In a 7-digit numerical code, each group of four consecutive digits adds to 16, and each group of five consecutive digits adds to 19. What is the sum of all 7 digits?
