These kinds of questions are commonly used as security questions for password recovery. If you have ever signed up for online services with your credit union or another financial institution, they have you set up security questions that are then used when you lock yourself out of your account or when they are verifying your identity because you are using a new device.
Ten most common security questions:
Keep in mind, the more personal information that you leave open to the public, the more you put yourself at risk. All we are saying is be careful and protect your personal info.