There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

You can hear me, but you can't touch or see me.

What am I?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

A Shopkeeper collects 71 rupees in the form of 20 paisa and 25 paisa.
He collects a total of 324 coins.

Can you tell me how many number of 20-paisa and 25-paisa he got?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.