Hint
The code has just four letters, A, B, C, and D. Each letter encodes 5 different letters.
Answer
I think, therefore I am.
Reasoning
A represents a, b, c, d, and e.
B represents f, g, h, i, and j.
C represents k, l, m, n, and o.
D represents p, q, r, s, and t.
E represents u, v, w, x, and y.
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Puzzle 2
What belongs to you but other people use it more than you?
Using all of the letters A to Z, each once only, complete these common words. There are currently 2 different answers, can you find them both? ap--eb-a-ebo--d-an-c-ro-e--ell-ra-ybu-c--o-ra-umb-s-ua-lo--lg-es-
