What is the Surname of Barbie Doll?

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

What's a single-digit number with no value?

Count the Triangle in the figure given below:

Prove that twice of ten is the same as twice of eleven.

What Time Should the last watch show in the below figure?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

What number do you get when you multiply all of the numbers on a telephone's number pad?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

who is silent in the parliament?