What is wrong in the below Picture?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

You can hear me, but you can't touch or see me.

What am I?

Can you find out the number that should replace the question mark with a valid reason?

Can you find the key in the picture below?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

what does the below rebus means?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

Find out the missing number in the picture attached:

Two natural numbers have a sum of less than 100 and are greater than one.

John knows the product of the numbers and Jacob knows the sum of numbers.

The following conversation takes place between them:
John: 'I am not aware of those numbers.'
Jacob: 'I knew you wouldn't be. I am not aware myself.'
John: 'Now I know them!'
Jacob: 'Now I know them, too!'

What are the two numbers?