John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

Why is it very easy to weigh a fish?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

Can you fill the blank with the correct number?

6 30 870 756030 _____