Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

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

What's the only room from which no one can enter or leave

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

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 walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What jumps when it walks and sits when it stands?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?