A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

What has 13 hearts but no other organs?

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

What is the word or phrase below?
R | E | A | D

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

What has one eye, but can’t see?