My Apple Security Questions are in Chinese?
I was trying to purchase something and I was going through the basic steps: putting in the password to my apple ID, etc. However, I was guided to a page that says, "Because this is your first time making a purchase on this device you must verify your identity by answering the following security questions before you can complete you purchase." It was very strange because I had purchased something else the day before. When I went to read the questions, they were in Chinese or Japanese! Long story short, I cannot answer my security questions to purchase anything and I cannot change them. Whenever I go to the Apple ID page where you can change your security questions, I do not have the option to change them.
In summary, I believe I may have been hacked and I don't know what to do.
I copied and pasted the questions into google translate, but I am unable to answer them because I have no idea what the actual answers are! Please help.
iPhone 6s, iOS 9.3.1