Can you solve the photo plexer logic ?

What has one eye, but can’t see?

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?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

Why is the Hole below a Lock?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

I have Rs.50 and I spend it in the way as below.

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?