Which country gets ill every time?

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?

What jumps when it walks and sits when it stands?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

I’m tall when I’m young, and I’m short when I’m old. What am I?

What four weights can be used to balance from 1 to 30 pounds?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Look at the picture and find out which square is not linked with any of the other squares.