The Answers:
Answers (click to reveal)
By @Aram , @randy , @BrianCanFixIT , @techadmin , @selimgoksu , @JasonWalker , @brolly33 , @strawgate
Q: last 1 of "1234E"
A: E
By @Aram
character ((number of (if length of it >= 1 then firsts 1 of it else it) of (it & following text of it) of characters whose (start of it mod 1 = 0) of it - 1) of "1234E") of "1234E"
By @BaiYunfei , @brolly33
Q: substring (length of it - 1,1) of string "1234E"
A: E
By @selimgoksu
Q: (matches (regex ".$") of "1234E")
A: E
By @zpt8mjs
parenthesized part 1 of matches (regex "(.)$") of "1234E"
By @JasonWalker , @brolly33
Q: matches (regex (".$")) of "1234E"
A: E
By @JasonWalker
Q: substring ((maximum of positions of it - 1),1) of "1234E"
A: E
By @brolly33
Q: following text of positions whose (it = (maximum of positions of "1234E" - 1)) of "1234E"
A: E