what does the below math rebus puzzle mean?

Find out the missing number in the picture attached:

What is harder to catch the faster you run?

An ape is trying to climb on a pole that is 60 feet high. Due to the slippery surface, the ape climbs 3 feet in a minute only to slip back 2 feet.

How much time do you think the monkey will take to reach the top of the pole?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

You bought me for dinner but never eat me. What am I?

What does a man do only once in his lifetime, but women do once a year after they are 29?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?