What has to be broken before you can use it?

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

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

Next Number in the Series,

5, 16, 49, 104, ?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

What is the next number in this matchsticks series riddle?