Day to day cleaning: Swiffer style sweeper.
Spot cleaning: windex, alcohol or plain nail polish remover.
Never wax. Use no oils.
Yes, you can.
Remove the laminate floor first
Laminate floor cannot be refinished. It will have to be replaced. Hardwood flooring can be refinished.
You should not buff a laminate floor.
No, laminate is floating type of floor installed over an insulation pad. Hardwood floor has to be nailed, stapled or glued to the subfloor. If you do manage to install hardwood on top of laminate sooner or later your Laminate floor will expand due to high temperature or humidity and it will create gaps between hardwood planks.
Laminate flooring can get wet, but only the top. Laminate flooring's sides, open seams, damaged areas, and bottoms can never get wet. If you install the laminate flooring in a full bathroom, you must take extreme precautions given by laminate manufacturers.
If the vinyl is down tight , the answer is YES, Laminate con go over it
Factories.
Try WD 40 and a nylon sink sponge. Start lightly, not much good in removing the paint and scratching the floor. Some laminate will take this abuse some won't.
Pergo is a Laminate floor not a composite, but the answer is no the wax will neither harm nor help a laminate floor
It is estimated that a laminate floor can last up to 20 years, before it needs replacing.
A laminate wood floor product is better since it uses less actual wood that an all wood floor does.