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.

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

What demands an answer, but asks no questions

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?

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

I don't get anymore wetter, no matter how much rain falls on me.

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

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?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?