Can you write down eight eights so that they add up to one thousand?

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?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

What occurs twice in a week, once in a year but never in a day?

What two things can you never eat for breakfast?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?