Teacher teach and preachers preach... no issues here.

You can amend. You can technically make amend. It means the same thing as change.

Annal means "record"- you can't do search a singular when the object your searching for is THAT singular. You search for a bird in a flock, you don't search for a bird in a bird.

Eggplant fruits (or are they vegetables) are shaped like eggs.

Hamburgers were invented in a place called hamburg.

French fries and english muffins.... I have absolutely no idea.

Quicksand is a misnomer caused by the fact that "quick" had other meanings, one of which was "liquid"- hence the word "quicksilver", which is mercury, a silver-colored fluid metal.

Pineapples really do look like a hybrid between a pine cone and an apple.

My favorite is the one about "horrible and horrific" and "terrible and terrific". You didn't include it.... so now I have to hate you.