How do I remove theses buttons/switches 65 Valiant?

Headlight switch knob removal.

Pull headlight knob out all the way till it stops on its last detent, then push in and hold in the button on the back of the switch then pull knob out the rest of the way. The knob is permanently pressed into the shaft or bayonet.

The wiper switch should have a set screw on the shank if it's that early of a car. My 67 has a set screw. 68 up they used a spring clip.

Hope this helps
Matt