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

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

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

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?