Which number should replace the question mark?

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?

What time is it when an elephant sits on a fence?

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

Three men in a cafe order a meal the total cost of which is $15. They each contribute $5. The waiter takes the money to the chef who recognises the three as friends and asks the waiter to return $5 to the men.

The waiter is not only poor at mathematics but dishonest and instead of going to the trouble of splitting the $5 between the three he simply gives them $1 each and pockets the remaining $2 for himself.

Now, each of the men effectively paid $4, the total paid is therefore $12. Add the $2 in the waiters pocket and this comes to $14. Where has the other $1 gone from the original $15?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

How many triangles are there in the picture below?

The answer I give is yes, but what I mean is no. What was the question?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?