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.

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Can you write down eight eights so that they add up to one thousand?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

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

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

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?