None of them, that what makes them facts.

You likely ask which seeming facts are actually false.

It that is so, here are some examples of "facts" I hear repeated:

• we only use 10% of our brains
• the sun is yellow
• Vikings wore horned helmets
• Cleopatra was Egyptian

And so on...

P. S.: don't forget to drink 8 glasses of water a day

All of them, including this one.

false

pee is stored in the balls

My pants are, and have always been, shit free.

"The real McCoy" is not a reference to Elijah McCoy's oiler but predates Elijah's invention and seems to come from Scotland originally. The term has been misapplied to many McCoy's over the centuries.

Elijah McCoy was an inventor who was originally born in Canada to parents who had fled there to escape slavery in Kentucky. They eventually moved to Michigan where Elijah would go on to invent not just an improved oiler mechanism for machinery but also stuff like a folding ironing board and a lawn sprinkler. Despite an interesting and successful life the saying "the real McCoy" was never really a thing. It seems to have been applied retroactively around the 1960's.

I can tell you which 80s band is Simply Red

"The Republicans are the party of fiscal responsibility."

Pancakes are better than waffles