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

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?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?

The Judge knows that Alamgir was killed by his girlfriend Jasline, but the judge is unsure whether to punish her. Why?

What occurs twice in a week, once in a year but never in a day?

The answer I give is yes, but what I mean is no. What was the question?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

Can you place three balls such that the equation shown in the picture holds true?

What is the word or phrase below?
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