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Hockey

After some matches were played, most of the information in the table containing the results of the games was accidentally deleted. What was the score in each match played?

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Eight Dominoes

Using the 8 dominoes make a square where each of the columns and rows adds up to 8

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Score

There are exactly 3 ways to add 4 odd numbers to get 10. Find all the ways of adding 8 odd numbers to get 20. To be sure of getting all the solutions you will need to be systematic. What about a total of 15 with 6 odd numbers?

Brailler

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

There are six dots in a Braille cell. Each dot can be either raised or left blank. A black dot is raised on the paper so you can feel it (circles represent dots that have not been used). A quick calculation should tell you that there are $2^6$ possible arrangements of the six dots. However, some would be difficult to tell apart if you were blind and so no two letters use the same arrangements placed in slightly different positions, for example the letter "d" is represented in the following way: braille so no letter uses braille.

Here is the Braille alphabet:

Braille Alphabet

Unfortunately something has gone wrong with the machine I use to produce Braille messages and one of the pins that makes a raised dot is not working. I typed a short message in Braille on my faulty machine. Can you work out what it really says:

Braille question2

The technician came to repair the machine and after she left it was worse than ever (a common story). Now my Braille machine randomly selects one pin that does not work. Can you decipher the following message written on the machine:

Braille Question 3