Misc: in order not to digest itself, how often does the stomach need a new layer of mucous?

Questions

McDonalds: These things may sound like Scottish lumps of gold, but are food.?

McDonalds: This is a common nickname for McDonalds(singular)?

McDonalds: Who is McDonald's mascot(full name)?

Couples: Abe Lincoln and ____ ____?

Couples: Ashford and _______?