There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

Can you find any error in the following sentence?

A taxi was standing outside a fort at night. A man came out of the fort, opened the gate and hit the taxi driver killing him instantly. He took all the money out of the meter and started running till he was caught by a local sheriff.

What am I?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

I know a nine-letter word having only one vowel.
Do you ?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

Why is the Hole below a Lock?

Which is heavier: a ton of bricks or a ton of feathers?

There was a strange boy who was born before his father. How can this be possible?