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.

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

If six children and two dogs were under an umbrella, how come none of them got wet?

What jumps when it walks and sits when it stands?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

How many times can you subtract the number two from the number fifty?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Why 1729 is a magic number? Answer Logically.

I am white when I am dirty, and black when I am clean. What am I?