What is the Surname of Barbie Doll?

What jumps when it walks and sits when it stands?

Which of the below owl is odd one out?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

A man dies of old age on his 25 birthday. How is this possible?

Can you start the fire using two pieces of wood?

It was a dark stormy night and a couple were in a car driving madly to a city. The car broke down and the husband had to go get help from someone who spoke his language. He was afraid to leave his wife alone in the car so he locked the car before leaving. When he came back, the car was in the same state as he had left it but his wife was dead, there was blood on the floor and there was a stranger in the car. What happened?

I taste better than I can smell. Who am I?