I have teeth but i don't bite. Who Am I ?

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

What two things can you never eat for breakfast?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

John was a very careless driver, so his owner Jacob gave him an offer that he will get an incentive of Rs.30 for every bottle box he delivered without breaking it and he will be charged Rs.90 for every bottle box he broke. Jacob gave John 100 bottles-box to deliver. After delivery, Jacob paid John Rs.2400. How many bottles-box did John break?

What's a single-digit number with no value?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

Why did Buffon take the goal with him after every Juventus match?