Can you replace corn syrup with maple syrup?

No. One is a starch, the other a sugar (fructose).

No. It won't give you the same flavor or results.

I would say no they may sound the same but pancake maple syrup has a thicker consistancy and just pure maple syrup doesn't because its very thin almost like water.

Corn syrup (such as Karo) comes in dark and clear. When a recipe calls for light, it means to use the clear on instead of the dark colored one.

Yes, cane syrup usually cost more than corn syrup.