Brain Teasers
63 = D C in B
Letter-Equations
Letter Equations are well known phrases or facts where the key words have been replaced with the first letter of that word. These are often in the form of an equation, which contain a number, an = sign and the rest of the obscured phrase or fact.Letter-Equations
63 = D C in B
Hint
63 = 2^6 - 1What involves six items that can either be one thing or the other?
Answer
63 = Dot Combinations in BrailleBraille consists of a 3x2 matrix of 6 dots, each either present or absent. The only unused combination of the six dots is the one with all dots absent.
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