My security answers appears to be incorrect

[mnhaq95]

When I wanted to change my security question, I have put the one I have used but it says my answer is incorrect.
From my perspective, It’s like it is a spelling Mistake. I have tried every possible ways to put the security answer but the result is still the same.
If it may cause further problems in the future, then what i may have to do prevent the possible problems? Because I may tend not to focus too much on this since I have a lot to deal with.
I would highly appreciate if I recieve answers to solve the problem even in a slightest. Thank you in advance.