When I type, the right side of my keyboard types numbers instaed of letters unless I hold down the fn key. How can I fix this

I Don't Know But U Probably Spilled Something On Your computer.. Buh What U SHould Do Is See If U can do anything on control panel

Don't worry you haven't spilled anything

You have numlock turned on... find a button called numlock on the keyboard, should be top-right, or somewhere on the side and press it (an LED should go off).