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.

Can you solve this picture maths equation?

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

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

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?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

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

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?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?