Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

Using Only Five 5's and any mathematical operator make sum as 37

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

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

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

I look at you, you look at me, I raise my right, you raise your left. What am I?

You along with your friend are standing in front of two houses. Each of those houses inhabits a family with two children.

Your friend tells you the below two facts:
1) On your left is a family that has a boy who likes accounts but the other child loves science.
2) On the right is a family with a seven-year-old boy and a newborn baby.

You ask him, "Does either of the family have a girl?"

To this, he replies, "I am not quite sure. But can you guess that? If you are right, I will give you $500."

Which family do you think is likely to have a girl?

What number divided by 4 is the same as that number minus 4?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.