There is no way to know this. All documents are internal. The last count that was released to the public is where they got their "billions and billions" slogan in the 1970's.
20 hamburgers.
When it first opened, the McDonald brothers sold their hamburgers for 15 cents each.
The McDonalds web site quotes "McDonalds is the leading global food service retailer with more than 30,000 local restaurants serving 52 million people in more than 100 countries each day".
depends
Hamburgers should be fried for about 4-5 minutes on each side for optimal taste and texture.
$5 each
None they don't
For the best results, fry hamburgers for about 4-5 minutes on each side until they reach an internal temperature of 160F.
There are thousands of McDonalds all over the world so I expect that millions of people visit it every day.
8 million
to hold money
It is called Pop the Pig. It is available on Amazon. This is the game where you feed the pig hamburgers based on a dice roll. You pump the pig's head to get them to eat each one. His stomach gets bigger until he pops out the hamburgers.