Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

What has to be broken before you can use it?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

What word begins and ends with an E, but has only one letter?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?