Yes, you can. After the password reset, you can logon with your new password immediately and continue working.
Enrolling allows you to reset the password yourself in case you have forgetten it.
Yes it works on any device with an internet connection and web browser.
Yes, but only during enrollment and the answer will be stored using encryption. Therefore, it is not possible to retrieve your original answers.
No, the software only stores the questions and answers.
No the IT Deparment cannot see your answers to the questions.
Yes, it is possible to reset a password that is expired using this utility.