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.

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

The more you take me, the more you leave me behind.
Who Am I?

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

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

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

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

O_er_t_o_

Complete the missing letters of the given word.