Why are some questions marked with an asterisk


Hint 1 of 4:
This means that I know that there should be another solution, such as...

Hint 2 of 4:
ways to get past guards without fighting, or that I could not solve the...

Hint 3 of 4:
puzzle (or at least didn't try to).  If you can help me complete this...

Hint 4 of 4:
file, let me know at the addresses in the above question.