A man was just doing his job when his suit was torn. Why did he die three minutes later?

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?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

Why is it very easy to weigh a fish?

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?

What does this mathematical rebus means ?

Why do we preferably have round manhole covers and not square ones?