If eleven plus two equals one, what does nine plus five equal?

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

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

A guy in his thirties is found dead in a forest. The shocking thing about the body is that he is wearing his swimming trunks snorkel and a facemask.

For your information, the nearest lake is some 10 miles away and the sea is hundreds of miles away.

How did he die then?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

You see me once in June, twice in November, and not at all in May. What am I?

Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?