What does the below rebus riddle means?

When does a USA Potato change its nationality?

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

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

It is always ahead of me yet I can never see it. What is it?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

I am white when I am dirty, and black when I am clean. What am I?

Can you replace the question mark with the correct number in the below table sequence?

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?