Hiding files or securing a files with a password?

Question

is there a possible way to make a folder and put files in them and secure them with a password or something?

Answer 1

There are several ways of doing this, depending on what it is you're trying to do.
At it's simplest level you can enable FileVault (System Preferences -> Security) which will encrypt your entire home directory and all its contents.
If you want a subset, your simplest solution is to create a disk image using Disk Utility.app. You can create an encrypted disk image that will prompt you for the password any time you open it.
When it's open it appears on the desktop like any other disk and you can copy files to/from it. When you eject it, it locks and the contents cannot be accessed without the password.
Which option you prefer depends on whether you want to encrypt everything, or just a subset of your documents.