If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Buy me, smell me or deliver me, I do not change.

Who am I?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

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?

Replace the question mark with the number below given a simple math problem.

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

Why is Saturday stronger than Monday?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Out of four images which one is the odd one out?