What has to be broken before you can use it?

Seven Robbers robbed a bank and hide the coins in a lonely place.
They decide to divide the money equally the next morning. Two greedy robbers decided to cheat the others and reach the place at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among the three. Sadly again one coin left. The same thing happened to the 4th 5th and the 6th robber.
However, when the 7th robber reached in the morning, they can divide the coins equally.

How many coins were there in total?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

What is the Surname of Barbie Doll?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

I make two people out of one. What am I?

Why 1729 is a magic number? Answer Logically.

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?