When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

If Bihan is 10, Anirudha is 20, and Kim and Seal are both 5, but Rikold is 10, how much is Kenniger by the same trend?

Can you find the mistake in the below statement?

Can you place six X (crosses) in below board without making three in a row in any way ?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

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

Who am I?

When we see 2 but call 10?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

A man plots the murder of his wife. His plan is full proof. Nobody saw them leaving their house. He stabbed her with a knife while driving. She died on the spot. He threw her body in a valley. He threw the knife carefully wiping his finger prints on a random garbage bin. Then he went back to his home and no one was watching him this time as well.

After an hour, he was called by the local police department who informed him that his wife was murdered. They asked him to reach the scene of crime immediately. But as soon as he arrived at the crime scene, he was arrested by them.

How did the police know that he himself is the murderer?