During the recent BrainBashers cipher convention, a Morse code contest took place. The contest consisted of a Morse code transmission where the spaces between the letters and words were missing. Can you decipher the sequence and find the well known proverb?

The exact size of the pipes and reservoir does not matter. If we label the large pipes L, the small pipes S and if the reservoir has a total of T litres, then:

T ÷ 6L = 12 which means L = T ÷ 72

and

T ÷ 6S = 18 which means S = T ÷ 108

we want T ÷ (6L + 6S)

= T ÷ ((6 x T ÷ 72) + (6 * T ÷ 108))

= T ÷ ((648 x T + 432 x T) ÷ 7776)

= T ÷ ((1080 x T) ÷ 7776)

= 7776 x T ÷ (1080 x T)

= 7776 ÷ 1080

= 7.2 hours

= 7 hours and 12 minutes. QED.

Puzzle 193

Can you complete this grid of letters. Each line is a valid 5 letter word with its first and last letter missing.

The missing letters form a word when read downwards and the same word appears both at the start and at the end.

Answer: Once in a blue moon: [ONCE in 'A Blue Moon'].

Puzzle 195

Using the BrainTracker grid below, how many words can you find? Each word must contain the central D and no letter can be used twice, however, the letters do not have to be connected. Proper nouns are not allowed, however, plurals are. Can you find the nine letter word?