What does this below rebus puzzle mean?

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

Which alphabet letter is a question?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

What can you see in the middle of March and April that you can never see in any other month?

What do you see in the image below

What is red and smells like blue paint?

The Puzzle: A girl, a boy, and a dog start walking down a road.

They start at the same time, from the same point, in the same direction.

The boy walks at 5 km/h, the girl at 6 km/h.

The dog runs from boy to girl and back again with a constant speed of 10 km/h. The dog does not slow down on the turn.
How far does the dog travel in 1 hour?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?