There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?

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

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

In which direction should the missing arrow point?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

A bomb exploded in a room full of married couples and no one died. How?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?