What is the Surname of Barbie Doll?

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

Do You See It?

What's the only room from which no one can enter or leave

Can you identify the Oscar-winning movie from the rebus below?

Can you find the dog hidden in a group of pandas?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

Can you solve below mathematical equation?

2^1234 - 2^1233