Hey there! 1) To solve this, You have to know the Atbash cipher code. This code involves changing the alphabet backwards. So, A=Z B=Y C=X D=W E=V F=U G=T H=S I=R J=Q K=P L=O M=N N=M O=L P=K Q=J R=I S=H T=G U=F V=E W=D X=C Y=B Z=A
So, if we use this code, the following letters: Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw become: You can never solve a problem on the level on which it was created.
The answer to question 1 is: You can never solve a problem on the level on which it was created.
2) 1729 is considered as a magic number because 1729=1³+12³=9³+10³ These equal to the sum of the cubes of 2 unlike groups of numbers.