Below is a possible solution to the Challenge 57 - Another Word Challenge - Palindrome or Not

Use the below formula -

=IF(SUMPRODUCT(--(MID(SUBSTITUTE(A1," ",""),ROW(INDIRECT("1:"&LEN(
SUBSTITUTE(A1," ","")))),1)=MID(SUBSTITUTE(A1," ",""),LEN(SUBSTITUTE(
A1," ",""))+1-ROW(INDIRECT("1:"&LEN(SUBSTITUTE(A1," ","")))),1)))=LEN(
SUBSTITUTE(A1," ","")),"Palindrome","Not Palindrome")