What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

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?

In order to complete the racing competition, the Mexico racetrack has to submit its top and the most famous three horses to win the competition. Due to an electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the Mexico racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

What does a man do only once in his lifetime, but women do once a year after they are 29?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?