why number 8549176320 is one of a kind?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Decode below rebus
D
N
A
T
S , D

Do you know who was buried in John's tomb?

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?

Count the number of triangles in the below picture?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

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

Explain?

What runs around the whole yard without moving?

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?