What is the Surname of Barbie Doll?

In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

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

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?