This is Just a theory, but we have 4 unsolved "things":
•the Number 8992
•the Number 8554
•the Word "SEVENTYTHREE"
•the solution "U" at the E=5 question
So we can use 8992855473U and tranform it into Letters (and the U in the Number 21
So: HIIBHEEDGC21 But it doesn't mean nothing!
