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 four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

If a wheel has 54 spokes, how many spaces are there between the spokes?

If eleven plus two equals one, what does nine plus five equal?

I am the fastest animal but cannot climb the tree. What am I?

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

John was piloting a plane behind a car but was never able to overtake it. Why?