Solution:

The answer is 0.
As
6 / 7 = 42 but the answer is written as 2
3 / 9 = 27 but the answer is written as 7
8 / 2 = 16 but the answer is written as 6
If we look at the answers, the second digit has been used in the problem.
Now, as
4 / 5 = 20 and the second digit is 0, the answer is 0.

Solution:

Space Invaders

Solution:

The plane was not flying :p

Solution:

He was running

Solution:

Both 'nothing' and 'something' don't rhyme with the word pizza.

Solution:

6

Explanation:
5*6 + 2 = 31
=> 7*6 + 2 = 44

Solution:

They were not playing against each other.

Solution:

Professor Frink said: 'I shall be hanged!' If he was lying, he would be hanged. But that's what the Frink was saying. So he speaks the truth. But if he speaks the truth, he would be beheaded, so then he was not speaking the truth. So it is impossible for the judge to determine wether the person speaks the truth or not. So therefore the judge cannot determine the penalty and sets him free.

Solution:

Once upon a time.

Solution:

Your name

(as u were drving the bus)