Question 1
If Layer 1: Letters → position numbers (A=1, B=2...), Layer 2: Numbers → symbols (1=@,2=#,3=$,4=%,5=&,6=*,7=+,8==,9=!,0=?), then code 'SAVE'
Layer 1: SAVE → S=19, A=1, V=22, E=5 = 191225
Layer 2: 191225 → @!@##&
Layer 2: 191225 → @!@##&