I have a panel with six toggle switches. Two lights controlled by this panel turned on by themselves last night. The switches were actually flipped from the lowered "off" position to the raised "on" position. These are the only switches that control these lights and I had just turned one of them off a few minutes earlier. Is there anything that can explain this, please?

You might have a ghost in the house.LOL

It is possible you did not have them completely turned off. The spring device that snaps the switches open and close could have turned them back on if they were not completely turned off to start with.

I guess anything's possible. Two separate switches turned on and one was taped in the off position (my son kept playing with the switch and waking his baby brother up who's pack and play is under the light).