Dont understand the binomial practice example

Example

a) On this example we will examine the probability a couple who has 8 children and has exactly 5 boys.

b) Next we will look at the probability that they have more than 5 boys.

c) Finally we will look at the probability that they have at most 5 boys.

Assume a .5 chance of having a boy.

a) On this example we will examine the probability a couple who has 8 children has exactly 5 boys.

b) Next we will look at the probability that they have more than 5 boys.

c) Finally we will look at the probability that they have at most 5 boys.

can you up a problem similar to this sample example. Try to have at least 3 scenarios like this one; so i can understand it better thank you.