Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

There is a jar in which there are two types of candies.
20 blueberries and 16 strawberries. You perform the following steps:
1) You take out two candies.
2) If the two candies are of the same flavour, you add a blueberry one otherwise, you add the strawberry one.

You repeat these two steps till there is just one candy remaining in the jar. Which flavoured candy will be left?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

How could a baby fall out of a twenty-story building onto the ground and live?

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?