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?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

What is the next number in this matchsticks series riddle?

Can you find out the total number of triangles in the given figure?

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

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

Using Only Five 5's and any mathematical operator make sum as 37