what does the below rebus means?

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?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

What do you see in the image below

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

What is the riddle which can be asked all day with a different correct answer each time.

Which is heavier: a ton of bricks or a ton of feathers?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

What occurs twice in a week, once in a year but never in a day?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135