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 ?

How many times can you subtract the number two from the number fifty?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

What does the below rebus puzzle mean?

I make two people out of one. What am I?