How can one talk without saying a single word?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

What is the Surname of Barbie Doll?

Can you make a six-letter word using the letters N, A and B ?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

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

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

People put me on the table and cut me but do not eat me. What am I?