Make an emulsion using one egg yolk and one cup oil. Add one or more tablespoons of acid such as vinegar or lemon juice for flavor. You can create the emulsion with a bar blender, stick blender or food processor. If want to waste a lot of time, you can whisk the egg in a bowl vigorously and drizzle in the oil a bit at a time. This is how self flagellating French chefs do it.
No. There are hair products that that use the word "mayonnaise" in them but it is not the mayonnaise you eat.
You don't usually need mayonnaise to make pancakes.
You can't. Your hair will grow or not grow with or without mayonnaise.
They don't make cheese with mayonnaise
Yes, they do.
To make a pickle-mayonnaise topping, chop a pickle into small pieces and mix it in mayonnaise in a bowl before spreading it on a sandwich.
Sitting down
the yolk
no not at all fruits and vegetables do
probably not
A normal bottle of any mayonnaise will not contain 12 eggs. While egg yolks are used to make mayonnaise, the main ingredient is oil, not egg.
If you put mayonnaise in the oven it would get to hot and make a gooey mess everywhere and so for the microwave